PROLOG

       This  manual  page  is part of the POSIX Programmer's Manual.  The Linux implementation of this interface
       may differ (consult the corresponding Linux manual page for details of Linux behavior), or the  interface
       may not be implemented on Linux.

NAME

       strings.h — string operations

SYNOPSIS

       #include <strings.h>

DESCRIPTION

       The following shall be declared as functions and may also be defined as macros. Function prototypes shall
       be provided for use with ISO C standard compilers.

           int    ffs(int);
           int    strcasecmp(const char *, const char *);
           int    strcasecmp_l(const char *, const char *, locale_t);
           int    strncasecmp(const char *, const char *, size_t);
           int    strncasecmp_l(const char *, const char *, size_t, locale_t);

       The <strings.h> header shall define the locale_t type as described in <locale.h>.

       The <strings.h> header shall define the size_t type as described in <sys/types.h>.

       The following sections are informative.

APPLICATION USAGE

       None.

RATIONALE

       None.

FUTURE DIRECTIONS

       None.

SEE ALSO

       <locale.h>, <sys_types.h>

       The System Interfaces volume of POSIX.1‐2008, ffs(), strcasecmp()

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition,
       Standard  for  Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers,  Inc
       and  The  Open Group.  (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the event
       of any discrepancy between this version and the original IEEE and The Open Group Standard,  the  original
       IEEE and The Open Group Standard is the referee document. The original Standard can be obtained online at
       http://www.unix.org/online.html .

       Any typographical or formatting errors that appear in this page are most likely to have  been  introduced
       during   the   conversion  of  the  source  files  to  man  page  format.  To  report  such  errors,  see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .