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  1. /*
  2. FUNCTION
  3.         <<strrchr>>---reverse search for character in string
  4.  
  5. INDEX
  6.         strrchr
  7.  
  8. ANSI_SYNOPSIS
  9.         #include <string.h>
  10.         char * strrchr(const char *<[string]>, int <[c]>);
  11.  
  12. TRAD_SYNOPSIS
  13.         #include <string.h>
  14.         char * strrchr(<[string]>, <[c]>);
  15.         char *<[string]>;
  16.         int *<[c]>;
  17.  
  18. DESCRIPTION
  19.         This function finds the last occurence of <[c]> (converted to
  20.         a char) in the string pointed to by <[string]> (including the
  21.         terminating null character).
  22.  
  23. RETURNS
  24.         Returns a pointer to the located character, or a null pointer
  25.         if <[c]> does not occur in <[string]>.
  26.  
  27. PORTABILITY
  28. <<strrchr>> is ANSI C.
  29.  
  30. <<strrchr>> requires no supporting OS subroutines.
  31.  
  32. QUICKREF
  33.         strrchr ansi pure
  34. */
  35.  
  36. #include <string.h>
  37.  
  38. char *
  39. _DEFUN (strrchr, (s, i),
  40.         _CONST char *s _AND
  41.         int i)
  42. {
  43.   _CONST char *last = NULL;
  44.  
  45.   if (i)
  46.     {
  47.       while ((s=strchr(s, i)))
  48.         {
  49.           last = s;
  50.           s++;
  51.         }
  52.     }
  53.   else
  54.     {
  55.       last = strchr(s, i);
  56.     }
  57.                  
  58.   return (char *) last;
  59. }
  60.