'\" t .\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk) .\" .\" SPDX-License-Identifier: Linux-man-pages-copyleft .\" .\" References consulted: .\" Linux libc source code .\" Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991) .\" 386BSD man pages .\" Modified Sat Jul 24 18:01:24 1993 by Rik Faith (faith@cs.unc.edu) .TH strpbrk 3 2023-03-30 "Linux man-pages 6.04" .SH NAME strpbrk \- search a string for any of a set of bytes .SH LIBRARY Standard C library .RI ( libc ", " \-lc ) .SH SYNOPSIS .nf .B #include .PP .BI "char *strpbrk(const char *" s ", const char *" accept ); .fi .SH DESCRIPTION The .BR strpbrk () function locates the first occurrence in the string .I s of any of the bytes in the string .IR accept . .SH RETURN VALUE The .BR strpbrk () function returns a pointer to the byte in .I s that matches one of the bytes in .IR accept , or NULL if no such byte is found. .SH ATTRIBUTES For an explanation of the terms used in this section, see .BR attributes (7). .ad l .nh .TS allbox; lbx lb lb l l l. Interface Attribute Value T{ .BR strpbrk () T} Thread safety MT-Safe .TE .hy .ad .sp 1 .SH STANDARDS C11, POSIX.1-2008. .SH HISTORY POSIX.1-2001, C89, SVr4, 4.3BSD. .SH SEE ALSO .BR memchr (3), .BR strchr (3), .BR string (3), .BR strsep (3), .BR strspn (3), .BR strstr (3), .BR strtok (3), .BR wcspbrk (3)