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@node memchr
@section @code{memchr}
@findex memchr
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/memchr.html}
Gnulib module: memchr
Portability problems fixed by Gnulib:
@itemize
@item
This function dereferences too much memory on some platforms:
glibc 2.10 on x86_64, IA-64; glibc 2.11 on Alpha, AIX 7.2.
@item
This function returns NULL if the character argument is not in the range
of an @code{unsigned char} on some platforms:
Android 5.0.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@end itemize
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