NAME    [Toc]    [Back]

       index,  rindex,  strchr, strrchr - Search for character in
       string

SYNOPSIS    [Toc]    [Back]

       #include <strings.h>

       char *index(
               const char *s,
               int c ); char *rindex(
               const char *s,
               int c ); #include <string.h>

       char *strchr(
               const char *s,
               int c ); char *strrchr(
               const char *s,
               int c );

LIBRARY    [Toc]    [Back]

       Standard C Library (libc)

STANDARDS    [Toc]    [Back]

       Interfaces documented on this reference  page  conform  to
       industry standards as follows:

       index(), rindex():  XPG4-UNIX

       strchr(), strrchr():  XPG4, XPG4-UNIX

       Refer to the standards(5) reference page for more information
 about industry standards and associated tags.

PARAMETERS    [Toc]    [Back]

       Specifies the string to search.   Specifies  a  character,
       expressed as an int data type, to search for.

DESCRIPTION    [Toc]    [Back]

       The  index()  function locates the first occurrence of the
       integer specified by the c parameter, which  is  converted
       to  an  unsigned  char,  in the string pointed to by the s
       parameter. The terminating null byte is treated as part of
       the string pointed to by the s parameter.

       The  rindex()  function locates the last occurrence of the
       integer specified by the c parameter, which  is  converted
       to a char value, in the string pointed to by the s parameter.
 The terminating null byte is treated as a part of the
       string pointed to by the s parameter.

       The  strchr()  and  strrchr()  functions  provide the same
       functionality  as  the  index()  and  rindex()  functions,
       respectively.

       If  c is a null byte ('\0') in any of these functions, the
       function locates the terminating null byte of s.

RETURN VALUES    [Toc]    [Back]

       Upon  successful  completion,  these  functions  return  a
       pointer  to  the byte in the scanned string. When the byte
       specified by parameter c is not found, a null  pointer  is
       returned.

SEE ALSO    [Toc]    [Back]

       Functions: string(3), wcschr(3)

       Standards: standards(5)



                                                        strchr(3)