| .\" Copyright (c) Bruno Haible <haible@clisp.cons.org> |
| .\" |
| .\" %%%LICENSE_START(GPLv2+_DOC_ONEPARA) |
| .\" This is free documentation; you can redistribute it and/or |
| .\" modify it under the terms of the GNU General Public License as |
| .\" published by the Free Software Foundation; either version 2 of |
| .\" the License, or (at your option) any later version. |
| .\" %%%LICENSE_END |
| .\" |
| .\" References consulted: |
| .\" GNU glibc-2 source code and manual |
| .\" Dinkumware C library reference http://www.dinkumware.com/ |
| .\" OpenGroup's Single UNIX specification http://www.UNIX-systems.org/online.html |
| .\" ISO/IEC 9899:1999 |
| .\" |
| .TH WCSSPN 3 2015-08-08 "GNU" "Linux Programmer's Manual" |
| .SH NAME |
| wcsspn \- advance in a wide-character string, skipping |
| any of a set of wide characters |
| .SH SYNOPSIS |
| .nf |
| .B #include <wchar.h> |
| .sp |
| .BI "size_t wcsspn(const wchar_t *" wcs ", const wchar_t *" accept ); |
| .fi |
| .SH DESCRIPTION |
| The |
| .BR wcsspn () |
| function is the wide-character equivalent of the |
| .BR strspn (3) |
| function. |
| It determines the length of the longest initial segment of |
| .I wcs |
| which consists entirely of wide-characters listed in |
| .IR accept . |
| In other |
| words, it searches for the first occurrence in the wide-character string |
| .I wcs |
| of a wide-character not contained in the wide-character string |
| .IR accept . |
| .SH RETURN VALUE |
| The |
| .BR wcsspn () |
| function returns the number of |
| wide characters in the longest |
| initial segment of |
| .I wcs |
| which consists entirely of wide-characters listed |
| in |
| .IR accept . |
| In other words, it returns the position of the first |
| occurrence in the wide-character string |
| .I wcs |
| of a wide-character not |
| contained in the wide-character string |
| .IR accept , |
| or |
| .I wcslen(wcs) |
| if there is none. |
| .SH ATTRIBUTES |
| For an explanation of the terms used in this section, see |
| .BR attributes (7). |
| .TS |
| allbox; |
| lb lb lb |
| l l l. |
| Interface Attribute Value |
| T{ |
| .BR wcsspn () |
| T} Thread safety MT-Safe |
| .TE |
| .SH CONFORMING TO |
| POSIX.1-2001, POSIX.1-2008, C99. |
| .SH SEE ALSO |
| .BR strspn (3), |
| .BR wcscspn (3) |