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Diffstat (limited to 'public/tier0/annotations.h')
| -rw-r--r-- | public/tier0/annotations.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/public/tier0/annotations.h b/public/tier0/annotations.h new file mode 100644 index 0000000..7e0f469 --- /dev/null +++ b/public/tier0/annotations.h @@ -0,0 +1,84 @@ +//========= Copyright Valve Corporation, All rights reserved. ============// +#ifndef ANALYSIS_ANNOTATIONS_H +#define ANALYSIS_ANNOTATIONS_H + +#if _MSC_VER >= 1600 // VS 2010 and above. +//----------------------------------------------------------------------------- +// Upgrading important helpful warnings to errors +//----------------------------------------------------------------------------- +#pragma warning(error : 4789 ) // warning C4789: destination of memory copy is too small + +// Suppress some code analysis warnings +#ifdef _PREFAST_ +// Include the annotation header file. +#include <sal.h> + +// For temporarily suppressing warnings -- the warnings are suppressed for the next source line. +#define ANALYZE_SUPPRESS(wnum) __pragma(warning(suppress: wnum)) +#define ANALYZE_SUPPRESS2(wnum1, wnum2) __pragma(warning(supress: wnum1 wnum2)) +#define ANALYZE_SUPPRESS3(wnum1, wnum2, wnum3) __pragma(warning(suppress: wnum1 wnum2 wnum3)) +#define ANALYZE_SUPPRESS4(wnum1, wnum2, wnum3, wnum4) __pragma(warning(suppress: wnum1 wnum2 wnum3 wnum4)) + +// Tag all printf style format strings with this +#define PRINTF_FORMAT_STRING _Printf_format_string_ +#define SCANF_FORMAT_STRING _Scanf_format_string_impl_ +// Various macros for specifying the capacity of the buffer pointed +// to by a function parameter. Variations include in/out/inout, +// CAP (elements) versus BYTECAP (bytes), and null termination or +// not (_Z). +#define IN_Z _In_z_ +#define IN_CAP(x) _In_count_(x) +#define IN_BYTECAP(x) _In_bytecount_(x) +#define OUT_Z_CAP(x) _Out_z_cap_(x) +#define OUT_CAP(x) _Out_cap_(x) +#define OUT_CAP_C(x) _Out_cap_c_(x) // Output buffer with specified *constant* capacity in elements +#define OUT_BYTECAP(x) _Out_bytecap_(x) +#define OUT_Z_BYTECAP(x) _Out_z_bytecap_(x) +#define INOUT_BYTECAP(x) _Inout_bytecap_(x) +#define INOUT_Z_CAP(x) _Inout_z_cap_(x) +#define INOUT_Z_BYTECAP(x) _Inout_z_bytecap_(x) +// These macros are use for annotating array reference parameters, typically used in functions +// such as V_strcpy_safe. Because they are array references the capacity is already known. +#if _MSC_VER >= 1700 +#define IN_Z_ARRAY _Pre_z_ +#define OUT_Z_ARRAY _Post_z_ +#define INOUT_Z_ARRAY _Prepost_z_ +#else +#define IN_Z_ARRAY _Deref_pre_z_ +#define OUT_Z_ARRAY _Deref_post_z_ +#define INOUT_Z_ARRAY _Deref_prepost_z_ +#endif // _MSC_VER >= 1700 +// Used for annotating functions to describe their return types. +#define MUST_CHECK_RETURN _Check_return_ +// Use the macros above to annotate string functions that fill buffers as shown here, +// in order to give VS's /analyze more opportunities to find bugs. +// void V_wcsncpy( OUT_Z_BYTECAP(maxLenInBytes) wchar_t *pDest, wchar_t const *pSrc, int maxLenInBytes ); +// int V_snwprintf( OUT_Z_CAP(maxLenInCharacters) wchar_t *pDest, int maxLenInCharacters, PRINTF_FORMAT_STRING const wchar_t *pFormat, ... ); + +#endif // _PREFAST_ +#endif // _MSC_VER >= 1600 // VS 2010 and above. + +#ifndef ANALYZE_SUPPRESS +#define ANALYZE_SUPPRESS(wnum) +#define ANALYZE_SUPPRESS2(wnum1, wnum2) +#define ANALYZE_SUPPRESS3(wnum1, wnum2, wnum3) +#define ANALYZE_SUPPRESS4(wnum1, wnum2, wnum3, wnum4) +#define PRINTF_FORMAT_STRING +#define SCANF_FORMAT_STRING +#define IN_Z +#define IN_CAP(x) +#define IN_BYTECAP(x) +#define OUT_Z_CAP(x) +#define OUT_CAP(x) +#define OUT_CAP_C(x) +#define OUT_BYTECAP(x) +#define OUT_Z_BYTECAP(x) +#define INOUT_BYTECAP(x) +#define INOUT_Z_CAP(x) +#define INOUT_Z_BYTECAP(x) +#define OUT_Z_ARRAY +#define INOUT_Z_ARRAY +#define MUST_CHECK_RETURN +#endif + +#endif // ANALYSIS_ANNOTATIONS_H |