/* strspn.c (emx+gcc) -- Copyright (c) 1990-1993 by Eberhard Mattes */

#include <string.h>

size_t strspn (const char *string1, const char *string2)
{
  char table[256];
  size_t i;

  memset (table, 0, 256);
  while (*string2 != 0)
    table[(unsigned char)*string2++] = 1;
  table[0] = 0;
  i = 0;
  while (table[(unsigned char)string1[i]])
    ++i;
  return (i);
}