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