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limit visibility of ffs function declaration to _XOPEN_SOURCE

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per the standard, ffs is XSI shaded, whereas the other functions in
this header are in the base.
This commit is contained in:
Rich Felker 2014-07-31 02:33:17 -04:00
parent 4f44937432
commit 38db09374a
1 changed files with 2 additions and 0 deletions
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2
include/strings.h
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@ -20,7 +20,9 @@ char *index (const char *, int);
char *rindex (const char *, int);
#endif
#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
int ffs (int);
#endif
int strcasecmp (const char *, const char *);
int strncasecmp (const char *, const char *, size_t);