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ICU-21499 Suppress warnings about non-NULL address in uprv_memcpy and uprv_memmove

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This commit is contained in:
Jeff Genovy 2021-02-17 12:17:38 -08:00
parent 4fd9b8de8d
commit 9d8a70abdc
1 changed files with 41 additions and 3 deletions
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44
icu4c/source/common/cmemory.h
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@ -37,19 +37,57 @@
#include <stdio.h>
#endif
// uprv_memcpy and uprv_memmove
#if defined(__clang__)
#define uprv_memcpy(dst, src, size) UPRV_BLOCK_MACRO_BEGIN { \
/* Suppress warnings about addresses that will never be NULL */ \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Waddress\"") \
U_ASSERT(dst != NULL); \
U_ASSERT(src != NULL); \
_Pragma("clang diagnostic pop") \
U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size); \
} UPRV_BLOCK_MACRO_END
#define uprv_memmove(dst, src, size) UPRV_BLOCK_MACRO_BEGIN { \
/* Suppress warnings about addresses that will never be NULL */ \
_Pragma("clang diagnostic push") \
_Pragma("clang diagnostic ignored \"-Waddress\"") \
U_ASSERT(dst != NULL); \
U_ASSERT(src != NULL); \
_Pragma("clang diagnostic pop") \
U_STANDARD_CPP_NAMESPACE memmove(dst, src, size); \
} UPRV_BLOCK_MACRO_END
#elif defined(__GNUC__)
#define uprv_memcpy(dst, src, size) UPRV_BLOCK_MACRO_BEGIN { \
/* Suppress warnings about addresses that will never be NULL */ \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Waddress\"") \
U_ASSERT(dst != NULL); \
U_ASSERT(src != NULL); \
_Pragma("GCC diagnostic pop") \
U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size); \
} UPRV_BLOCK_MACRO_END
#define uprv_memmove(dst, src, size) UPRV_BLOCK_MACRO_BEGIN { \
/* Suppress warnings about addresses that will never be NULL */ \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Waddress\"") \
U_ASSERT(dst != NULL); \
U_ASSERT(src != NULL); \
_Pragma("GCC diagnostic pop") \
U_STANDARD_CPP_NAMESPACE memmove(dst, src, size); \
} UPRV_BLOCK_MACRO_END
#else
#define uprv_memcpy(dst, src, size) UPRV_BLOCK_MACRO_BEGIN { \
U_ASSERT(dst != NULL); \
U_ASSERT(src != NULL); \
U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size); \
} UPRV_BLOCK_MACRO_END
#define uprv_memmove(dst, src, size) UPRV_BLOCK_MACRO_BEGIN { \
U_ASSERT(dst != NULL); \
U_ASSERT(src != NULL); \
U_STANDARD_CPP_NAMESPACE memmove(dst, src, size); \
} UPRV_BLOCK_MACRO_END
#endif
/**
* \def UPRV_LENGTHOF