diff options
Diffstat (limited to 'git-compat-util.h')
| -rw-r--r-- | git-compat-util.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/git-compat-util.h b/git-compat-util.h index 940d03150c..e81bb14fc9 100644 --- a/git-compat-util.h +++ b/git-compat-util.h @@ -97,8 +97,14 @@ struct strbuf; # define BARF_UNLESS_AN_ARRAY(arr) \ BUILD_ASSERT_OR_ZERO(!__builtin_types_compatible_p(__typeof__(arr), \ __typeof__(&(arr)[0]))) +# define BARF_UNLESS_COPYABLE(dst, src) \ + BUILD_ASSERT_OR_ZERO(__builtin_types_compatible_p(__typeof__(*(dst)), \ + __typeof__(*(src)))) #else # define BARF_UNLESS_AN_ARRAY(arr) 0 +# define BARF_UNLESS_COPYABLE(dst, src) \ + BUILD_ASSERT_OR_ZERO(0 ? ((*(dst) = *(src)), 0) : \ + sizeof(*(dst)) == sizeof(*(src))) #endif /* * ARRAY_SIZE - get the number of elements in a visible array @@ -1093,9 +1099,6 @@ int xstrncmpz(const char *s, const char *t, size_t len); #define CALLOC_ARRAY(x, alloc) (x) = xcalloc((alloc), sizeof(*(x))) #define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), st_mult(sizeof(*(x)), (alloc))) -#define BARF_UNLESS_COPYABLE(dst, src) \ - BUILD_ASSERT_OR_ZERO(sizeof(*(dst)) == sizeof(*(src))) - #define COPY_ARRAY(dst, src, n) copy_array((dst), (src), (n), sizeof(*(dst)) + \ BARF_UNLESS_COPYABLE((dst), (src))) static inline void copy_array(void *dst, const void *src, size_t n, size_t size) |