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wrapper.c: add and use fopen_or_warn()

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When fopen() returns NULL, it could be because the given path does not
exist, but it could also be some other errors and the caller has to
check. Add a wrapper so we don't have to repeat the same error check
everywhere.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nguyễn Thái Ngọc Duy
2017-05-03 17:16:50 +07:00
committed by Junio C Hamano
parent 11dc1fcb3f
commit e9d983f116
15 changed files with 43 additions and 26 deletions
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git-compat-util.h
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@ -802,6 +802,7 @@ extern int xmkstemp(char *template);
extern int xmkstemp_mode(char *template, int mode);
extern char *xgetcwd(void);
extern FILE *fopen_for_writing(const char *path);
extern FILE *fopen_or_warn(const char *path, const char *mode);
#define ALLOC_ARRAY(x, alloc) (x) = xmalloc(st_mult(sizeof(*(x)), (alloc)))
#define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), st_mult(sizeof(*(x)), (alloc)))