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C/C++ Source or Header  |  1992-07-13  |  467 b   |  26 lines
  1. #include <string.h>
  2.  
  3. /*
  4.  * strcspn - find length of initial segment of s consisting entirely
  5.  * of characters not from reject
  6.  */
  7.  
  8. size_t
  9. strcspn(s, reject)
  10. Const char *s;
  11. Const char *reject;
  12. {
  13.     register Const char *scan;
  14.     register Const char *rscan;
  15.     register size_t count;
  16.  
  17.     count = 0;
  18.     for (scan = s; *scan != '\0'; scan++) {
  19.         for (rscan = reject; *rscan != '\0';)    /* ++ moved down. */
  20.             if (*scan == *rscan++)
  21.                 return(count);
  22.         count++;
  23.     }
  24.     return(count);
  25. }
  26.