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PVS/V1028: cast operands, not the result

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This commit is contained in:
Justin M. Keyes
2019-01-05 00:57:27 +01:00
parent 6b6a4d63ec
commit 596f020e90
3 changed files with 33 additions and 19 deletions
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22
src/nvim/assert.h
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@@ -15,10 +15,6 @@
# define __has_extension __has_feature
#endif
#ifndef __has_builtin
# define __has_builtin __has_feature
#endif
/// @def STATIC_ASSERT
/// @brief Assert at compile time if condition is not satisfied.
///
@@ -136,20 +132,22 @@
///
/// @param MAX Maximum value of the narrowest type of operand.
/// Not used if compiler supports __builtin_add_overflow.
#if __has_builtin(__builtin_add_overflow)
# define STRICT_ADD(a, b, c) \
#if (defined(__clang__) && __has_builtin(__builtin_add_overflow)) \
|| (__GNUC__ >= 5)
# define STRICT_ADD(a, b, c, t) \
do { if (__builtin_add_overflow(a, b, c)) { abort(); } } while (0)
#else
# define STRICT_ADD(a, b, c) \
do { *c = a + b; } while (0)
# define STRICT_ADD(a, b, c, t) \
do { *(c) = (t)(a + b); } while (0)
#endif
#if __has_builtin(__builtin_sub_overflow)
# define STRICT_SUB(a, b, c) \
#if (defined(__clang__) && __has_builtin(__builtin_sub_overflow)) \
|| (__GNUC__ >= 5)
# define STRICT_SUB(a, b, c, t) \
do { if (__builtin_sub_overflow(a, b, c)) { abort(); } } while (0)
#else
# define STRICT_SUB(a, b, c) \
do { *c = a - b; } while (0)
# define STRICT_SUB(a, b, c, t) \
do { *(c) = (t)(a - b); } while (0)
#endif
#endif // NVIM_ASSERT_H