VS2015：从CLI使用/ Wall但在某些文件中禁用警告（例如：在Microsoft Visual Studio 14.0中使用）

Question

I wanted to enable the /Wall option using the Command line and IncrediBuild, but now I have too many warning from files that are mostly "read only":

C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\include\cmath(35): warning C4514: 'abs': unreferenced inline function has been removed

I don't/won't touch cmath but still I've got those picky warning (which I asked).

Is there a way to tell VS2015 to ignore warning in certain directories? (like if I were using a pragma inside those file to locally disable such warning).

Note: it was perhaps not clear, but I don't want to use a trick such as modifying local source (that's a big project with at least 1000 cpp files) or system header. Only through the command line.

Answer 1

What I do is wrap all the system includes with #pragma warning push / pop . I have convenience macros for that in my library .

Usage example:

#include "compiler/compiler_warnings_control.h"

// The following header files belong to a 3rd-party library.
// These headers produce various compiler warnings.
// So I simply wrap them in warning suppression macros:

DISABLE_COMPILER_WARNINGS
#include "libusb.h"
#include "zlib.h"
RESTORE_COMPILER_WARNINGS

Implementation (MSVC part only; the complete implementation in my repo is cross-platform):

#define COMPILER_PRAGMA(text) __pragma(text)
#define STORE_COMPILER_WARNINGS COMPILER_PRAGMA(warning(push))
#define RESTORE_COMPILER_WARNINGS COMPILER_PRAGMA(warning(pop))
#define DISABLE_SPECIFIC_COMPILER_WARNING(warningCode) COMPILER_PRAGMA(warning (diable: warningCode))

#define DISABLE_COMPILER_WARNINGS COMPILER_PRAGMA(warning(push, 0)) // Set /W0