附录

MSVC 的命令行选项

MSVC (即 Visual Studio 系列, 不包括 VS Code) 推荐的错误检查选项 (摘自 cppbestpractices: Use the Tools Available - compilers - MSVC):

• 你应该默认启用的: /permissive- /W4 /w14640

• 根据需要添加

  • /permissive- Enforces standards conformance.

  • /W4 All reasonable warnings

  • /w14242 'identfier': conversion from 'type1' to 'type1', possible loss of data

  • /w14254 'operator': conversion from 'type1:field_bits' to 'type2:field_bits', possible loss of data

  • /w14263 'function': member function does not override any base class virtual member function

  • /w14265 'classname': class has virtual functions, but destructor is not virtual instances of this class may not be destructed correctly

  • /w14287 'operator': unsigned/negative constant mismatch

  • /we4289 nonstandard extension used: 'variable': loop control variable declared in the for-loop is used outside the for-loop scope

  • /w14296 'operator': expression is always 'boolean_value'

  • /w14311 'variable': pointer truncation from 'type1' to 'type2'

  • /w14545 expression before comma evaluates to a function which is missing an argument list

  • /w14546 function call before comma missing argument list

  • /w14547 'operator': operator before comma has no effect; expected operator with side-effect

  • /w14549 'operator': operator before comma has no effect; did you intend 'operator'?

  • /w14555 expression has no effect; expected expression with side-effect

  • /w14619 pragma warning: there is no warning number 'number'

  • /w14640 Enable warning on thread un-safe static member initialization

  • /w14826 Conversion from 'type1' to 'type_2' is sign-extended. This may cause unexpected runtime behavior.

  • /w14905 wide string literal cast to 'LPSTR'

  • /w14906 string literal cast to 'LPWSTR'

  • /w14928 illegal copy-initialization; more than one user-defined conversion has been implicitly applied