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@node strcspn
@section @code{strcspn}
@findex strcspn
POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9699919799/functions/strcspn.html}
Gnulib module: strcspn
Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some old platforms.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
This function cannot work correctly on character strings in multibyte locales.
Gnulib provides an alternative function @code{mbscspn} that works on character
strings in all locales.
@end itemize
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