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Visual Studio 2022 版本 17.5 中引入的警告 (编译器版本 19.35)

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.34 来抑制的。

Message C5260 常量变量“ variable-name ”在包含的头文件上下文中具有内部链接，但在导入的标头单元上下文中具有外部链接;如果将在翻译单元之间共享，请考虑声明它为“


   inline

”，或“”


   static

以表达在此翻译单元本地使用它的意图 C5261 没有整数类型可以表示枚举“ enum-name ”中的所有枚举器值 C5262 隐式回落在此处发生;是否缺少语句


   break

？在事例之间有意省略语句时


   break

使用


   [[fallthrough]]

C5263 对临时对象调用“”


   std::move

会阻止复制 C5264 “ variable-name ”：不使用“


   const

”变量

Visual Studio 2022 版本 17.3（编译器版本 19.33）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.32 来抑制的。

C5244 “#include <filename>”（在模块“module-name-1”的 purview 中）出现错误。请考虑将该指令移到模块声明之前，或将文本包含内容替换为“import <filename>;”。 C5245 “function”：已删除具有内部链接的未引用函数 C5246 “member”：子对象的初始化应括在大括号内 C5249 类型为“enumeration_name”的“bitfield”已命名枚举器，其值不能以给定的位字段宽度“bitfield_width”表示。 C5250 “function_name”：未声明内部函数。 C5252 多种不同类型导致相同的 XFG 类别-哈希 hash-value；PDB 将仅记录其中一个类型的信息 C5072


   ASAN enabled without debug information emission. Enable debug info for better ASAN error reporting

C5211


   'keyword-1' has been deprecated; prefer using 'keyword-2' instead

C5222


   'attribute-name': all unscoped attribute names are reserved for future standardization

C5223


   all attribute names in the attribute namespace 'msvc' are reserved for the implementation

C5224


   all attribute names in the attribute namespace 'a-namespace' are reserved for future standardization

C5225


   'symbol': exported inline function defined in a private module fragment is a non-standard extension

C5226


   'symbol': exported template defined in private module fragment has no reachable instantiation

C5227


   nonstandard extension, resolved 'symbol' to 'instance' which is not visible with /permissive- on.

C5228


   nonstandard extension, 'identifier' resolved to a member of a dependent base. This lookup is not allowed under /permissive-.

C5229


   nonstandard extension, the hidden friend function 'function-name' was found by name lookup which isn't allowed under /permissive-.

C5230


   nonstandard extension, 'identifier' was resolved to 'symbol' under /permissive. Under /permissive- it would resolve to 'other-symbol'.

C5231


   the expression 'co_await promise.final_suspend()' must be non-throwing

)

Visual Studio 2019 版本 16.7（编译器版本 19.27.29112.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.26 来抑制的。

Message C5207


   the simple requirement asserts the validity of expression 'e->id'. Did you mean '{ e } -> id'? You can suppress the warning using '{ e->id }'

C5209


   the C++20 syntax for an init-capture has changed to '& ...opt identifier initializer'

C5210


   'name' is not a valid header unit reference; ignoring

C5212


   'name' is not a valid named reference; treating as reference to file

C5213


   'name' named reference is treated as a named partition but the name is not specified; treating as reference to file

C5214


   applying 'modifier' to an operand with a volatile qualified type is deprecated in C++20

C5215


   'name' a function parameter with a volatile qualified type is deprecated in C++20

C5216


   'name' a volatile qualified return type is deprecated in C++20

C5217


   a structured binding declaration that includes volatile is deprecated in C++20

C5218


   destroying delete may not behave as intended when non-conforming switches '/Zc:sizedDealloc-' or '/Zc:alignedNew-' are used

C5219


   implicit conversion from 'type-1' to 'type-2', possible loss of data

C5220


   'name': a non-static data member with a volatile qualified type no longer implies%$N that compiler generated copy/move constructors and copy/move assignment operators are not trivial

C5221


   xfg::rename is deprecated.

Visual Studio 2019 版本 16.6（编译器版本 19.26.28805.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.25 来抑制的。

Message C5207


   the simple requirement asserts the validity of expression 'e->id'. Did you mean '{ e } -> id'? You can suppress the warning using '{ e->id }'

C5208


   unnamed class used in typedef name cannot declare members other than non-static data members, member enumerations, or member classes

Visual Studio 2019 版本 16.5（编译器版本 19.25.28610.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.24 来抑制的。

Message C5062


   enum direct list initialization between 'type-1' and 'type-2' is no longer supported

C5063


   'std::is_constant_evaluated' always evaluates to true in manifestly constant-evaluated expressions

C5108


   __VA_OPT__ is reserved for use in variadic macros

C5204


   'type-name': class has virtual functions, but its trivial destructor is not virtual; instances of objects derived from this class may not be destructed correctly

C5205


   delete of an abstract class 'type-name' that has a non-virtual destructor results in undefined behavior

C5206


   deduced return types for coroutines is a non-standard extension

Visual Studio 2019 版本 16.4（编译器版本 19.24.28314.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.23 来抑制的。

Message C5201


   a module declaration can appear only at the start of a translation unit unless a global module fragment is used

C5202


   a global module fragment can only contain preprocessor directives

C5203


   a parenthesized declarator name after 'explicit' will be considered an explicit-specifier in C++20

Visual Studio 2019 版本 16.3（编译器版本 19.23.28105.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.22 来抑制的。

Message C4856


   'value' is not a valid argument for '/d1initAll:FillPattern' (value must be between 0 and 255). Command-line flag ignored

C4857


   C++/CLI mode does not support C++ versions newer than C++17; setting language to /std:c++17

Visual Studio 2019 版本 16.2（编译器版本 19.22.27905.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.21 来抑制的。

Message C5059


   runtime checks and address sanitizer is not currently supported - disabling runtime checks

C5060


   /Qpar and address sanitizer not currently supported - disabling auto-parallelization

Visual Studio 2019 版本 16.1（编译器版本 19.21.27702.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.20 来抑制的。

Message C5052


   Keyword 'keyword-name' was introduced in C++<version> and requires use of the 'option-name' command-line option

C5053


   support for 'explicit(<expr>)' in C++17 and earlier is a vendor extension

Visual Studio 2019 RTW（编译器版本 19.20.27004.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.15 来抑制的。

Message C4848


   support for standard attribute 'no_unique_address' in C++17 and earlier is a vendor extension

C4854


   binding dereferenced null pointer to reference has undefined behavior

C5051


   attribute 'attribute-name' requires at least 'standard-level'; ignored

C4643


   Forward declaring 'identifier' in namespace std is not permitted by the C++ Standard.

C4644


   usage of the macro-based offsetof pattern in constant expressions is non-standard; use offsetof defined in the C++ standard library instead

C4845


   '__declspec(no_init_all)' is ignored if '/d1initall[0|1|2|3]' was not specified on the command line

C4846


   'value' is not a valid argument for '/d1initall': command-line flag ignored

C4847


   '__declspec(no_init_all)' can only be applied to a function, a class type, or a local variable: ignored

C4866


   compiler may not enforce left-to-right evaluation order for call to 'function'

C5046


   'function': Symbol involving type with internal linkage not defined

C5047


   use of nonstandard __if_exists with modules is not supported

C5048


   Use of macro 'macroname' may result in non-deterministic output

C5049


   'string': Embedding a full path may result in machine-dependent output

C5050


   Possible incompatible environment while importing module 'module_name': issue

C5100


   __VA_ARGS__ is reserved for use in variadic macros

C5101


   use of preprocessor directive in function-like macro argument list is undefined behavior

C5102


   ignoring invalid command-line macro definition 'value'

C5103


   pasting 'token1' and 'token2' does not result in a valid preprocessing token

C5104


   found 'string1#string2' in macro replacement list, did you mean 'string1""#string2'?

C5105


   macro expansion producing 'defined' has undefined behavior

C5106


   macro redefined with different parameter names

C5107


   missing terminating 'char' character

Visual Studio 2017 版本 15.7（编译器版本 19.14.26428.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.13 来抑制的。

Message C4843


   'type1': An exception handler of reference to array or function type is unreachable, use 'type2' instead

C4844


   'export module module_name;' is now the preferred syntax for declaring a module interface

C5039


   'function': pointer or reference to potentially throwing function passed to extern C function under -EHc. Undefined behavior may occur if this function throws an exception.

C5040


   dynamic exception specifications are valid only in C++14 and earlier; treating as noexcept(false)

C5041


   'definition': out-of-line definition for constexpr static data member is not needed and is deprecated in C++17

C5042


   'declaration': function declarations at block scope cannot be specified 'inline' in standard C++; remove 'inline' specifier

C5043


   'specification': exception specification does not match previous declaration

Visual Studio 2017 版本 15.3（编译器版本 19.11.25506.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.10 来抑制的。

Message C4604


   'type': passing argument by value across native and managed boundary requires valid copy constructor. Otherwise the runtime behavior is undefined

C4749


   conditionally supported: description

C4768


   __declspec attributes before linkage specification are ignored

C4834


   discarding return value of function with 'nodiscard' attribute

C4841


   non-standard extension used: extension

C4842


   the result of 'offsetof' applied to a type using multiple inheritance is not guaranteed to be consistent between compiler releases

C4869


   'nodiscard' may only be applied to classes, enumerations, and functions with non-void return type

C4984


   'if constexpr' is a C++17 language extension

C5033


   '*storage-class*' is no longer a supported storage class

C5034


   use of intrinsic 'intrinsic' causes function function to be compiled as guest code

C5035


   use of feature 'feature' causes function function to be compiled as guest code

C5036


   varargs function pointer conversion when compiling with /hybrid:x86arm64 'type1' to 'type2'

C5037


   '*member-function*': an out-of-line definition of a member of a class template cannot have default arguments

C5038


   data member 'member1' will be initialized after data member 'member2'

Visual Studio 2017 RTM（编译器版本 19.10.25017.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.00 来抑制的。

Message C4698


   'feature' is for evaluation purposes only and is subject to change or removal in future updates.

C4839


   non-standard use of class 'class' as an argument to a variadic function

C4840


   non-portable use of class 'class' as an argument to a variadic function

C4598


   '#include <header>': header number number in the source does not match source at that position

C4599


   'argument': source argument number number does not match source

Visual Studio 2015 更新 2（编译器版本 19.00.23918.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.00.23506 来抑制的。

Message C4828


   The file contains a character starting at offset 0xvalue that is illegal in the current source character set (codepage number).

C4868


   compiler may not enforce left-to-right evaluation order in braced initializer list

Visual Studio 2015 更新 1（编译器版本 19.00.23506.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:19.00.23026 来抑制的。

Message C4654


   Code placed before include of precompiled header line will be ignored. Add code to precompiled header.

C5031


   #pragma warning(pop): likely mismatch, popping warning state pushed in different file

C5032


   detected #pragma warning(push) with no corresponding #pragma warning(pop)

Visual Studio 2015 RTM（编译器版本 19.00.23026.0）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:18 来抑制的。

Message C4438


   'type': cannot be called safely in /await:clrcompat mode. If 'type' calls into the CLR it may result in CLR head corruption

C4455


   'operator name': literal suffix identifiers that do not start with an underscore are reserved

C4456


   declaration of 'name' hides previous local declaration

C4457


   declaration of 'name' hides function parameter

C4458


   declaration of 'name' hides class member

C4459


   declaration of 'name' hides global declaration

C4462


   'type' : cannot determine the GUID of the type. Program may fail at runtime.

C4463


   overflow; assigning value to bit-field that can only hold values from value to value

C4473


   'function' : not enough arguments passed for format string

C4474


   'function' : too many arguments passed for format string

C4475


   'function' : length modifier 'modifier' cannot be used with type field character 'character' in format specifier

C4476


   'function' : unknown type field character 'character' in format specifier

C4477


   'function' : format string 'string' requires an argument of type 'type', but variadic argument number has type 'type'

C4478


   'function' : positional and non-positional placeholders cannot be mixed in the same format string

C4494


   'type' : Ignoring __declspec(allocator) because the function return type is not a pointer or reference

C4495


   nonstandard extension '__super' used: replace with explicit base class name

C4496


   nonstandard extension 'for each' used: replace with ranged-for statement

C4497


   nonstandard extension 'sealed' used: replace with 'final'

C4498


   nonstandard extension used: 'extension'

C4499


   'specialization': an explicit specialization cannot have a storage class (ignored)

C4576


   a parenthesized type followed by an initializer list is a non-standard explicit type conversion syntax

C4577


   'noexcept' used with no exception handling mode specified; termination on exception is not guaranteed. Specify /EHsc

C4578


   'abs': conversion from 'type' to 'type', possible loss of data (Did you mean to call 'name' or to #include <cmath>?)

C4582


   'type': constructor is not implicitly called

C4583


   'type': destructor is not implicitly called

C4587


   'type': behavior change: constructor is no longer implicitly called

C4588


   'type': behavior change: destructor is no longer implicitly called

C4589


   Constructor of abstract class 'type' ignores initializer for virtual base class 'type'

C4591


   'constexpr' call-depth limit of number exceeded (/constexpr:depth<NUMBER>)

C4592


   'type': symbol will be dynamically initialized (implementation limitation)

C4593


   'type': 'constexpr' call evaluation step limit of value exceeded; use /constexpr:steps<NUMBER> to increase the limit

C4647


   behavior change: __is_pod(type) has different value in previous versions

C4648


   standard attribute 'carries_dependency' is ignored

C4649


   attributes are ignored in this context

C4753


   Cannot find bounds for pointer; MPX intrinsic function ignored

C4771


   Bounds must be created using a simple pointer; MPX intrinsic function ignored

C4774


   'description' : format string expected in argument number is not a string literal

C4775


   nonstandard extension used in format string 'string' of function 'function'

C4776


   '%character' is not allowed in the format string of function 'function'

C4777


   'description' : format string 'string' requires an argument of type 'type', but variadic argument number has type 'type'

C4778


   'description' : unterminated format string 'string'

C4838


   conversion from 'type' to 'type' requires a narrowing conversion

C5022


   'type': multiple move constructors specified

C5023


   'type': multiple move assignment operators specified

C5024


   'declaration': move constructor was implicitly defined as deleted

C5025


   'declaration': move assignment operator was implicitly defined as deleted

C5026


   'type': move constructor was implicitly defined as deleted

C5027


   'type': move assignment operator was implicitly defined as deleted

C5028


   'name': Alignment specified in prior declaration (number) not specified in definition

C5029


   nonstandard extension used: alignment attributes in C++ apply to variables, data members and tag types only

C5030


   attribute 'attribute' is not recognized

Visual Studio 2013（编译器版本 18.00.21005.1）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:17 来抑制的。

Message C4301


   'type': overriding virtual function only differs from 'declaration' by const/volatile qualifier

C4316


   'type': object allocated on the heap may not be aligned number

C4380


   'type': A default constructor cannot be deprecated

C4388


   'token': signed/unsigned mismatch

C4423


   'std::bad_alloc': will be caught by class ('type') on line number

C4424


   catch for 'type' preceded by 'type' on line number; unpredictable behavior may result if 'std::bad_alloc' is thrown

C4425


   A SAL annotation cannot be applied to '...'

C4464


   relative include path contains '..'

C4575


   '__vectorcall' incompatible with the '/clr' option: converting to '__stdcall'

C4609


   'type' derives from default interface 'type' on type 'type'. Use a different default interface for 'type', or break the base/derived relationship.

C4754


   Conversion rules for arithmetic operations in the comparison at description(number) mean that one branch cannot be executed. Cast 'type' to 'type' (or similar type of number bytes).

C4755


   Conversion rules for arithmetic operations in the comparison at description(number) mean that one branch cannot be executed in an inlined function. Cast 'type' to 'type' (or similar type of number bytes).

C4767


   section name 'name' is longer than 8 characters and will be truncated by the linker

C4770


   partially validated enum 'name' used as index

C4827


   A public 'ToString' method with 0 parameters should be marked as virtual and override

C4882


   passing functors with non-const call operators to concurrency::parallel_for_each is deprecated

C4973


   'type': marked as deprecated

C4974


   'type': marked as deprecated

C4981


   Warbird: function 'declaration' marked as __forceinline not inlined because it contains exception semantics

C4990


   Warbird: message

C4991


   Warbird: function 'declaration' marked as __forceinline not inlined because protection level of inlinee is greater than the parent

C4992


   Warbird: function 'declaration' marked as __forceinline not inlined because it contains inline assembly which cannot be protected

Visual Studio 2012（编译器版本 17.00.51106.1）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:16 来抑制的。

Message C4436


   dynamic_cast from virtual base 'type' to 'type' in constructor or destructor could fail with partially-constructed object

C4437


   dynamic_cast from virtual base 'type' to 'type' could fail in some contexts

C4443


   expected pragma parameter to be '0', '1', or '2'

C4446


   'type': cannot map member 'name' into this type, due to conflict with the type name. The method was renamed to 'name'

C4447


   'main' signature found without threading model. Consider using 'int main(Platform::Array<Platform::String^>^ args)'.

C4448


   'type' does not have a default interface specified in metadata. Picking: 'type', which may fail at runtime.

C4449


   'type' an unsealed type should be marked as '[WebHostHidden]'

C4450


   'type' should be marked as '[WebHostHidden]' because it derives from 'type'

C4451


   'type': Usage of ref class 'type' inside this context can lead to invalid marshaling of object across contexts

C4452


   'type': public type cannot be at global scope. It must be in a namespace that is a child of the name of the output .winmd file.

C4453


   'type': A '[WebHostHidden]' type should not be used on the published surface of a public type that is not '[WebHostHidden]'

C4454


   'type' is overloaded by more than the number of input parameters without having [DefaultOverload] specified. Picking 'declaration' as the default overload

C4471


   'name': a forward declaration of an unscoped enumeration must have an underlying type (int assumed)

C4472


   'name' is a native enum: add an access specifier (private/public) to declare a managed/WinRT enum

C4492


   'type': matches base ref class method 'type', but is not marked 'override'

C4493


   delete expression has no effect as the destructor of 'type' does not have 'public' accessibility

C4585


   'type': A WinRT 'public ref class' must either be sealed or derive from an existing unsealed class

C4586


   'type': A public type cannot be declared in a top-level namespace called 'Windows'

C4695


   #pragma execution_character_set: 'argument' is not a supported argument: currently only 'UTF-8' is supported

C4703


   potentially uninitialized local pointer variable 'name' used

C4728


   /Yl- option ignored because PCH reference is required

C4745


   volatile access of 'name' cannot be honored due to its size

C4746


   volatile access of 'name' is subject to /volatile:<iso | ms> setting; consider using __iso_volatile_load/store intrinsic functions

C4872


   floating point division by zero detected when compiling the call graph for the concurrency::parallel_for_each at: 'description'

C4880


   casting from 'type' to 'type': casting away constness from a pointer or reference may result in undefined behavior in an amp restricted function

C4881


   the constructor and/or the destructor will not be invoked for tile_static variable 'type'

C4966


   'description' has __code_seg annotation with unsupported segment name, annotation ignored

C4988


   'type': variable declared outside class/function scope

C4989


   'description': type has conflicting definitions.

Visual Studio 2010（编译器版本 16.00.40219.01）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:15 来抑制的。

Message C4573


   the usage of 'type' requires the compiler to capture 'this' but the current default capture mode does not allow it

C4574


   'name' is defined to be '0': did you mean to use '#if name'?

C4689


   'character': unsupported character in #pragma detect_mismatch; #pragma ignored

C4751


   /arch AVX flag does not apply to Intel(R) Streaming SIMD Extensions that are within inline ASM

C4752


   found Intel(R) Advanced Vector Extensions; consider using the appropriate /arch AVX flag

C4837


   trigraph detected: '??character' replaced by 'character'

C4986


   'declaration': exception specification does not match previous declaration

C4987


   nonstandard extension used: 'throw (...)'

Visual Studio 2008（编译器版本 15.00.21022.08）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:14 来抑制的。

Message C4396


   'type': the inline specifier cannot be used when a friend declaration refers to a specialization of a function template

C4413


   'declaration': reference member is initialized to a temporary that doesn't persist after the constructor exits

C4491


   'description': has an illegal IDL version format

C4603


   'name': macro is not defined or definition is different after precompiled header use

C4627


   'description': skipped when looking for precompiled header use

C4750


   'description': function with _alloca() inlined into a loop

C4910


   'type': '__declspec(dllexport)' and 'extern' are incompatible on an explicit instantiation

C4985


   'declaration': attributes not present on previous declaration.

Visual Studio 2005（编译器版本 14.00.50727.762）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:13 来抑制的。

Message C4000


   UNKNOWN WARNING    Please choose the Technical Support command on the Visual C++     Help menu, or open the Technical Support help file for more information

C4272


   'type': is marked __declspec(dllimport); must specify native calling convention when importing a function.

C4333


   'expression': right shift by too large amount, data loss

C4334


   'expression': result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)

C4335


   Mac file format detected: please convert the source file to either DOS or UNIX format

C4342


   behavior change: 'type' called, but a member operator was called in previous versions

C4350


   behavior change: 'declaration' called instead of 'declaration'

C4357


   param array argument found in formal argument list for delegate 'declaration' ignored when generating 'type'

C4358


   'expression': return type of combined delegates is not 'void'; returned value is undefined

C4359


   'type': Alignment specifier is less than actual alignment (number), and will be ignored.

C4362


   'type': alignment greater than 8 bytes is not supported by CLR

C4364


   #using for assembly 'name' previously seen at description(number) without as_friend attribute; as_friend not applied

C4365


   'expression': conversion from 'type' to 'type', signed/unsigned mismatch

C4366


   The result of the unary 'operator' operator may be unaligned

C4367


   Conversion from 'type' to 'type' may cause datatype misalignment exception

C4368


   cannot define 'name' as a member of managed 'type': mixed types are not supported

C4369


   'type':  enumerator value 'number' cannot be represented as 'type', value is 'number'

C4374


   'declaration': interface method will not be implemented by non-virtual method 'declaration'

C4375


   non-public method 'declaration' does not override 'declaration'

C4376


   access specifier 'specifier:' is no longer supported: please use 'specifier:' instead

C4377


   native types are private by default; -d1PrivateNativeTypes is deprecated

C4378


   Must obtain function pointers to run initializers; consider System::ModuleHandle::ResolveMethodHandle

C4379


   Version version of the common language runtime is not supported by this compiler. Using this version may cause unexpected results

C4381


   'declaration': interface method will not be implemented by non-public method 'declaration'

C4382


   throwing 'type': a type with __clrcall destructor or copy constructor can only be caught in /clr:pure module

C4383


   'type': the meaning of dereferencing a handle can change, when a user-defined 'operator' operator exists; write the operator as a static function to be explicit about the operand

C4384


   #pragma 'directive' should only be used at global scope

C4393


   'type': const has no effect on description data member; ignored

C4394


   'type': per-appdomain symbol should not be marked with __declspec(value)

C4395


   'type': member function will be invoked on a copy of the initonly data member 'type'

C4397


   DefaultCharSetAttribute is ignored

C4398


   'type': per-process global object might not work correctly with multiple appdomains; consider using __declspec(appdomain)

C4399


   'type': per-process symbol should not be marked with __declspec(value) when compiled with /clr:pure

C4400


   'type': const/volatile qualifiers on this type are not supported

C4412


   'declaration': function signature contains type 'type'; C++ objects are unsafe to pass between pure code and mixed or native.

C4429


   possible incomplete or improperly formed universal-character-name

C4430


   missing type specifier - int assumed. Note: C++ does not support default-int

C4431


   missing type specifier - int assumed. Note: C no longer supports default-int

C4434


   a static constructor must have private accessibility; changing to private access

C4439


   'type': function definition with a managed type in the signature must have a __clrcall calling convention

C4441


   calling convention of 'convention' ignored; 'convention' used instead

C4445


   'declaration': in a managed/WinRT type a virtual method cannot be private

C4460


   CLR/WinRT operator 'type', has parameter passed by reference. CLR/WinRT operator 'operator' has different semantics from C++ operator 'operator', did you intend to pass by value?

C4461


   'type': this class has a finalizer '!type' but no destructor '~type'

C4470


   floating-point control pragmas ignored under /clr

C4480


   nonstandard extension used: specifying underlying type for enum 'type'

C4481


   nonstandard extension used: override specifier 'specifier'

C4482


   nonstandard extension used: enum 'type' used in qualified name

C4483


   syntax error: expected C++ keyword

C4484


   'type': matches base ref class method 'type', but is not marked 'virtual', 'new' or 'override'; 'new' (and not 'virtual') is assumed

C4485


   'type': matches base ref class method 'type', but is not marked 'new' or 'override'; 'new' (and 'virtual') is assumed

C4486


   'type': a private virtual method of a ref class or value class should be marked 'sealed'

C4487


   'type': matches inherited non-virtual method 'type' but is not explicitly marked 'new'

C4488


   'type': requires 'keyword' keyword to implement the interface method 'type'

C4489


   'keyword': not allowed on interface method 'name'; override specifiers are only allowed on ref class and value class methods

C4490


   'keyword': incorrect use of override specifier; 'type' does not match a base ref class method

C4538


   'type': const/volatile qualifiers on this type are not supported

C4559


   'type': redefinition; the function gains __declspec(value)

C4565


   'type': redefinition; the symbol was previously declared with __declspec(value)

C4566


   character represented by universal-character-name 'character' cannot be represented in the current code page (number)

C4568


   'type': no members match the signature of the explicit override

C4569


   'type': no members match the signature of the explicit override

C4570


   'type': is not explicitly declared as abstract but has abstract functions

C4571


   Informational: catch(...) semantics changed since Visual C++ 7.1; structured exceptions (SEH) are no longer caught

C4572


   [ParamArray] attribute is deprecated under /clr, use '...' instead

C4580


   [attribute] is deprecated; instead specify specifiedAttribute as a base class

C4581


   deprecated behavior: '"name"' replaced with 'name' to process attribute

C4606


   #pragma warning: 'number' ignored; Code Analysis warnings are not associated with warning levels

C4631


   MSXML or XPath unavailable, XML document comments will not be processed. description

C4632


   XML document comment: description - access denied: description

C4633


   XML document comment description: error: description

C4634


   XML document comment description: cannot be applied: description

C4635


   XML document comment description: badly-formed XML: description

C4636


   XML document comment description: tag requires non-empty 'description' attribute.

C4637


   XML document comment description: <include> tag discarded. description

C4638


   XML document comment description: reference to unknown symbol 'description'.

C4639


   MSXML error, XML document comments will not be processed. description

C4641


   XML document comment has an ambiguous cross reference:

C4678


   base class 'declaration' is less accessible than 'name'

C4679


   'description': could not import member

C4687


   'type': a sealed abstract class cannot implement an interface 'type'

C4688


   'name': constraint list contains assembly private type 'declaration'

C4690


   [ emitidl( pop ) ]: more pops than pushes

C4691


   'type': type referenced was expected in unreferenced module 'description', type defined in current translation unit used instead

C4692


   'name': signature of non-private member contains assembly private native type 'declaration'

C4693


   'type': a sealed abstract class cannot have any instance members 'name'

C4694


   'type': a sealed abstract class cannot have a base-class 'type'

C4720


   in-line assembler reports: 'description'

C4721


   'description': not available as an intrinsic

C4722


   'description': destructor never returns, potential memory leak

C4726


   ARM arch4/4T supports only '<cpsr_f> or <spsr_f>' with immediate value

C4727


   PCH named name with same timestamp found in name and name.  Using first PCH.

C4729


   function too big for flow graph based warnings

C4730


   'description': mixing _m64 and floating point expressions may result in incorrect code

C4731


   'description': frame pointer register 'register' modified by inline assembly code

C4732


   intrinsic 'intrinsic' is not supported in this architecture

C4733


   Inline asm assigning to 'FS:0': handler not registered as safe handler

C4734


   More than 64k line numbers in a COFF debug info section; stop emitting COFF debug line numbers for module 'module'

C4738


   storing 32-bit float result in memory, possible loss of performance

C4739


   reference to variable 'variable' exceeds its storage space

C4740


   flow in or out of inline asm code suppresses global optimization

C4742


   'variable' has different alignment in 'location' and 'location': number and number

C4743


   'name' has different size in 'location' and 'location': number and number bytes

C4744


   'name' has different type in 'location' and 'location': 'type' and 'type'

C4747


   Calling managed 'type': Managed code may not be run under loader lock, including the DLL entrypoint and calls reached from the DLL entrypoint

C4761


   integral size mismatch in argument; conversion supplied

C4764


   Cannot align catch objects to greater than 16 bytes

C4788


   'identifier': identifier was truncated to 'number' characters

C4789


   buffer 'name' of size number bytes will be overrun; number bytes will be written starting at offset number

C4801


   Return by reference is not verifiable: description

C4819


   The file contains a character that cannot be represented in the current code page (number). Save the file in Unicode format to prevent data loss

C4826


   Conversion from 'type' to 'type' is sign-extended. This may cause unexpected runtime behavior.

C4829


   Possibly incorrect parameters to function main. Consider 'int main(Platform::Array<Platform::String^>^ argv)'

C4835


   'type': the initializer for exported data will not be run until managed code is first executed in the host assembly

C4867


   'type': non-standard syntax; use '&' to create a pointer to member

C4936


   this __declspec is supported only when compiled with /clr or /clr:pure

C4937


   'name' and 'name' are indistinguishable as arguments to 'option'

C4938


   'type': Floating point reduction variable may cause inconsistent results under /fp:strict or #pragma fenv_access

C4939


   #pragma vtordisp is deprecated and will be removed in a future release of Visual C++

C4947


   'type': marked as obsolete

C4949


   pragmas 'managed' and 'unmanaged' are meaningful only when compiled with '/clr[:option]'

C4950


   'type': marked as obsolete

C4955


   'description': import ignored; already imported from 'source'

C4956


   'type': this type is not verifiable

C4957


   'expression': explicit cast from 'type' to 'type' is not verifiable

C4958


   'expression': pointer arithmetic is not verifiable

C4959


   cannot define unmanaged class 'type' in /clr:safe because accessing its members yields unverifiable code

C4960


   'description' is too big to be profiled

C4961


   No profile data was merged into 'location', profile-guided optimizations disabled

C4962


   'description': Profile-guided optimizations disabled because optimizations caused profile data to become inconsistent

C4963


   'description': no profile data found; different compiler options were used in instrumented build

C4964


   No optimization options were specified; profile info will not be collected

C4965


   implicit box of integer 0; use nullptr or explicit cast

C4970


   delegate constructor: target object ignored since 'declaration' is static

C4971


   Argument order: <target object>, <target function> for delegate constructor is deprecated, use <target function>, <target object>

C4972


   Directly modifying or treating the result of an unbox operation as an lvalue is unverifiable

Visual Studio 2003（编译器版本 13.10.3077）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:13.00.9466 来抑制的。

Message C4344


   behavior change: use of explicit template arguments results in call to 'declaration'

C4346


   'type': dependent name is not a type

C4348


   'declaration': redefinition of default parameter: parameter number

C4356


   'type': static data member cannot be initialized via derived class

C4408


   anonymous struct did not declare any data members

C4544


   'declaration': default template argument ignored on this template declaration

C4545


   expression before comma evaluates to a function which is missing an argument list

C4546


   function call before comma missing argument list

C4547


   'expression': operator before comma has no effect; expected operator with side-effect

C4548


   expression before comma has no effect; expected expression with side-effect

C4549


   'expression': operator before comma has no effect; did you intend 'expression'?

C4628


   digraphs not supported with -Ze. Character sequence 'sequence' not interpreted as alternate token for 'token'

C4629


   digraph used, character sequence 'sequence' interpreted as token 'token' (insert a space between the two characters if this is not what you intended)

C4671


   'description': the copy constructor is inaccessible

C4676


   'description': the destructor is inaccessible

C4677


   'name': signature of non-private member contains assembly private type 'declaration'

C4686


   'type': possible change in behavior, change in UDT return calling convention

C4812


   obsolete declaration style: please use 'type::name' instead

C4813


   'type': a friend function of a local class must have been previously declared

C4821


   Unable to determine Unicode encoding type, please save the file with signature (BOM)

C4822


   'type': local class member function does not have a body

C4823


   'type': uses pinning pointers but unwind semantics are not enabled. Consider using /EHa

C4913


   user defined binary operator ',' exists but no overload could convert all operands, default built-in binary operator ',' used

C4948


   return type of 'declaration' does not match the last parameter type of the corresponding setter

C4951


   'description' has been edited since profile data was collected, function profile data not used

C4952


   'description': no profile data found in program database 'description'

C4953


   Inlinee 'description' has been edited since profile data was collected, profile data not used

C4954


   'description': not profiled (contains __int64 switch expression)

Visual Studio 2002（编译器版本 13.00.9466）中引入的警告

这些警告和更高版本中的所有警告都是通过使用编译器选项 /Wv:12 来抑制的。

Message C4256


   'declaration': constructor for class with virtual bases has '...'; calls may not be compatible with older versions of Visual C++

C4258


   'name': definition from the for loop is ignored; the definition from the enclosing scope is used

C4263


   'declaration': member function does not override any base class virtual member function

C4264


   'declaration': no override available for virtual member function from base 'class'; function is hidden

C4265


   'type': class has virtual functions, but destructor is not virtual instances of this class may not be destructed correctly

C4266


   'declaration': no override available for virtual member function from base 'class'; function is hidden

C4267


   'expression': conversion from 'size_t' to 'type', possible loss of data

C4274


   #ident ignored; see documentation for #pragma comment(exestr, 'string')

C4277


   imported item 'type::name' exists as both data member and function member; data member ignored

C4278


   'name': identifier in type library 'description' is already a macro; use the 'rename' qualifier

C4279


   'name': identifier in type library 'description' is a keyword; use the 'rename' qualifier

C4287


   'expression': unsigned/negative constant mismatch

C4288


   nonstandard extension used: 'name': loop control variable declared in the for-loop is used outside the for-loop scope; it conflicts with the declaration in the outer scope

C4289


   nonstandard extension used: 'name': loop control variable declared in the for-loop is used outside the for-loop scope

C4293


   'expression': shift count negative or too big, undefined behavior

C4295


   'type': array is too small to include a terminating null character

C4296


   'expression': expression is always value

C4297


   'type': function assumed not to throw an exception but does

C4298


   'name': identifier in type library 'description' is already a macro; renaming to '__name'

C4299


   'name': identifier in type library 'description' is a keyword; renaming to '__name'

C4302


   'expression': truncation from 'type' to 'type'

C4303


   conversion from 'type' to 'type' is deprecated, use static_cast, __try_cast or dynamic_cast

C4314


   expected pragma parameter to be '32' or '64'

C4315


   'type': 'this' pointer for member 'type' may not be aligned number as expected by the constructor

C4318


   passing constant zero as the length to memset

C4319


   'expression': zero extending 'type' to 'type' of greater size

C4321


   automatically generating an IID for interface 'type'

C4322


   automatically generating a CLSID for class 'type'

C4323


   re-using registered CLSID for class 'type'

C4324


   'type': structure was padded due to alignment specifier

C4325


   attributes for standard section 'description' ignored

C4326


   return type of 'name' should be 'type' instead of 'type'

C4327


   'expression': indirection alignment of LHS (number) is greater than RHS (number)

C4328


   'description': indirection alignment of formal parameter number (number) is greater than the actual argument alignment (number)

C4329


   alignment specifier is ignored on enum

C4336


   import cross-referenced type library 'library' before importing 'description'

C4337


   cross-referenced type library 'library' in 'description' is being automatically imported

C4338


   #pragma description: standard section 'section' is used

C4339


   'type': use of undefined type detected in CLR/WinRT meta-data - use of this type may lead to a runtime exception

C4353


   nonstandard extension used: constant 0 as function expression.  Use '__noop' function intrinsic instead

C4370


   'declaration': layout of class has changed from a previous version of the compiler due to better packing

C4371


   'declaration': layout of class may have changed from a previous version of the compiler due to better packing of member 'member'

C4373


   'type': virtual function overrides 'declaration', previous versions of the compiler did not override when parameters only differed by const/volatile qualifiers

C4387


   'description': was considered

C4389


   'expression': signed/unsigned mismatch

C4391


   'declaration': incorrect return type for intrinsic function, expected 'type'

C4392


   'declaration': incorrect number of arguments for intrinsic function, expected 'number' arguments

C4407


   cast between different pointer to member representations, compiler may generate incorrect code

C4420


   'name': operator not available, using 'name' instead; run-time checking may be compromised

C4440


   calling convention redefinition from 'description' to 'description' ignored

C4442


   embedded null terminator in __annotation argument.  Value will be truncated.

C4444


   'name': top level '__unaligned' is not implemented in this context

C4526


   'type': static member function cannot override virtual function 'declaration' override ignored, virtual function will be hidden

C4531


   C++ exception handling not available on Windows CE. Use Structured Exception Handling

C4532


   'description': jump out of finally block has undefined behavior during termination handling

C4533


   initialization of 'declaration' is skipped by 'goto declaration'

C4534


   'declaration' will not be a default constructor for class 'type' due to the default argument

C4535


   calling _set_se_translator() requires /EHa

C4536


   'description': type-name exceeds meta-data limit of 'number' characters

C4537


   'declaration': '.' applied to non-UDT type

C4542


   Skipping generation of merged injected text file, cannot write type file: 'filename': error

C4543


   Injected text suppressed by attribute 'no_injected_text'

C4555


   expression has no effect; expected expression with side-effect

C4557


   '__assume' contains effect 'effect'

C4558


   value of operand 'number' is out of range 'number - number'

C4561


   '__fastcall' incompatible with the '/clr' option: converting to '__stdcall'

C4562


   fully prototyped functions are required with the '/clr' option: converting '()' to '(void)'

C4564


   method 'name' of class 'type' defines unsupported default parameter 'parameter'

C4584


   'type': base-class 'declaration' is already a base-class of 'declaration'

C4608


   Initializing multiple members of union: 'type' and 'type'

C4619


   #pragma warning: there is no warning number 'number'

C4623


   'type': default constructor was implicitly defined as deleted

C4624


   'type': destructor was implicitly defined as deleted

C4625


   'type': copy constructor was implicitly defined as deleted

C4626


   'type': assignment operator was implicitly defined as deleted

C4645


   function declared with 'noreturn' has a return statement

C4646


   function declared with 'noreturn' has non-void return type

C4659


   #pragma 'description': use of reserved segment 'name' has undefined behavior, use #pragma comment(linker, ...)

C4667


   'declaration': no function template defined that matches forced instantiation

C4668


   'name' is not defined as a preprocessor macro, replacing with '0' for 'value'

C4669


   'expression': unsafe conversion: 'type' is a managed/WinRT type object

C4674


   'name' should be declared 'static' and have exactly one parameter

C4680


   'type': coclass does not specify a default interface

C4681


   'type': coclass does not specify a default interface that is an event source

C4682


   'type': no directional parameter attribute specified, defaulting to [in]

C4683


   'declaration': event source has an 'out'-parameter; exercise caution when hooking multiple event handlers

C4684


   'description': WARNING!! attribute may cause invalid code generation: use with caution

C4685


   expecting '> >' found '>>' when parsing template parameters

C4700


   uninitialized local variable 'name' used

C4701


   potentially uninitialized local variable 'name' used

C4702


   unreachable code

C4711


   function 'name' selected for automatic inline expansion

C4714


   function 'declaration' marked as __forceinline not inlined

C4715


   'function': not all control paths return a value

C4716


   'function': must return a value

C4717


   'function': recursive on all control paths, function will cause runtime stack overflow

C4718


   'function': recursive call has no side effects, deleting

C4719


   Double constant found when Qfast specified - use 'f' as a suffix to indicate single precision

C4723


   potential divide by 0

C4724


   potential mod by 0

C4725


   instruction may be inaccurate on some Pentiums

C4757


   subscript is a large unsigned value, did you intend a negative constant?

C4772


   #import referenced a type from a missing type library; 'description' used as a placeholder

C4792


   function 'function' declared using sysimport and referenced from native code; import library required to link

C4794


   segment of thread local storage variable 'name' changed from 'segment' to 'segment'

C4798


   native code generated for p-code function 'name' with exception handler or unwind semantics

C4799


   function 'name' has no EMMS instruction

C4803


   'declaration': the raise method has a different storage class from that of the event, 'declaration'

C4810


   value of pragma pack(show) == number

C4811


   value of pragma conform(forScope, show) == value

C4820


   'type': 'number' bytes padding added after type 'type'

C4905


   wide string literal cast to 'type'

C4906


   string literal cast to 'type'

C4912


   'attribute': attribute has undefined behavior on a nested UDT

C4916


   in order to have a dispid, 'type': must be introduced by an interface

C4917


   'type': a GUID can only be associated with a class, interface or namespace

C4918


   'character': invalid character in pragma optimization list

C4920


   enum name member name=number already seen in enum name as name=number

C4921


   'name': attribute value 'value' should not be multiply specified

C4925


   'declaration': dispinterface method cannot be called from script

C4926


   'declaration': symbol is already defined: attributes ignored

C4927


   illegal conversion; more than one user-defined conversion has been implicitly applied

C4928


   illegal copy-initialization; more than one user-defined conversion has been implicitly applied

C4929


   'description': typelibrary contains a union; ignoring the 'embedded_idl' qualifier

C4930


   'declaration': prototyped function not called (was a variable definition intended?)

C4931


   we are assuming the type library was built for number-bit pointers

C4932


   __identifier(description) and __identifier(description) are indistinguishable

C4934


   '__delegate(multicast)' is deprecated, use '__delegate' instead

C4935


   assembly access specifier modified from 'description'

C4944


   'name': cannot import symbol from 'source': as 'declaration' already exists in the current scope

C4945


   'name': cannot import symbol from 'source': as 'declaration' has already been imported from another assembly 'source'

C4946


   reinterpret_cast used between related classes: 'declaration' and 'declaration'

C4995


   'name': name was marked as #pragma deprecated

C4996


   'deprecated declaration': deprecation message (or "was declared deprecated")

C4997


   'type': coclass does not implement a COM interface or pseudo-interface

C4998


   EXPECTATION FAILED: description(number)

C/C++ 编译器和生成工具错误与警告
 编译器警告 C4000 - C5999
/Wv 编译器选项
 默认情况下处于关闭状态的编译器警告
 warning