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authorPhillip Wood <phillip.wood@dunelm.org.uk>2022-07-08 16:25:18 (GMT)
committerJunio C Hamano <gitster@pobox.com>2022-07-08 16:34:30 (GMT)
commit848fd5ae5b6506df50ae872302d94b794dc57d51 (patch)
treee826df62795df5dd9b55b1f4aa0c38005e7a2294 /xdiff/xmacros.h
parent18aae7e21e1a88c75adb38aa2555e0b1928b137d (diff)
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xdiff: introduce XDL_CALLOC_ARRAY()
Add a helper for allocating an array and initialize the elements to zero. This is analogous to CALLOC_ARRAY() in the rest of the codebase but it returns NULL on allocation failures rather than dying to accommodate other users of libxdiff such as libgit2. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'xdiff/xmacros.h')
-rw-r--r--xdiff/xmacros.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/xdiff/xmacros.h b/xdiff/xmacros.h
index 9fd3c5d..0977d16 100644
--- a/xdiff/xmacros.h
+++ b/xdiff/xmacros.h
@@ -55,4 +55,7 @@ do { \
? xdl_malloc((nr) * sizeof(*(p))) \
: NULL)
+/* Allocate an array of nr zeroed out elements, returns NULL on failure */
+#define XDL_CALLOC_ARRAY(p, nr) ((p) = xdl_calloc(nr, sizeof(*(p))))
+
#endif /* #if !defined(XMACROS_H) */