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-rw-r--r--git-compat-util.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index 87237b092b..ef6d560e15 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -527,6 +527,16 @@ static inline int ends_with(const char *str, const char *suffix)
return strip_suffix(str, suffix, &len);
}
+#define SWAP(a, b) do { \
+ void *_swap_a_ptr = &(a); \
+ void *_swap_b_ptr = &(b); \
+ unsigned char _swap_buffer[sizeof(a)]; \
+ memcpy(_swap_buffer, _swap_a_ptr, sizeof(a)); \
+ memcpy(_swap_a_ptr, _swap_b_ptr, sizeof(a) + \
+ BUILD_ASSERT_OR_ZERO(sizeof(a) == sizeof(b))); \
+ memcpy(_swap_b_ptr, _swap_buffer, sizeof(a)); \
+} while (0)
+
#if defined(NO_MMAP) || defined(USE_WIN32_MMAP)
#ifndef PROT_READ
@@ -988,6 +998,17 @@ static inline void sane_qsort(void *base, size_t nmemb, size_t size,
qsort(base, nmemb, size, compar);
}
+#ifndef HAVE_ISO_QSORT_S
+int git_qsort_s(void *base, size_t nmemb, size_t size,
+ int (*compar)(const void *, const void *, void *), void *ctx);
+#define qsort_s git_qsort_s
+#endif
+
+#define QSORT_S(base, n, compar, ctx) do { \
+ if (qsort_s((base), (n), sizeof(*(base)), compar, ctx)) \
+ die("BUG: qsort_s() failed"); \
+} while (0)
+
#ifndef REG_STARTEND
#error "Git requires REG_STARTEND support. Compile with NO_REGEX=NeedsStartEnd"
#endif