decouple this from strchr

diff --git a/libc/string/strcspn.c b/libc/string/strcspn.c
index b383b55..4b698b5 100644 (file)
--- a/libc/string/strcspn.c
+++ b/libc/string/strcspn.c
@@ -22,13 +22,17 @@
    which contains no characters from REJECT.  */
 size_t strcspn( const char *s, const char *reject)
 {
-       size_t count = 0;
+    register char *scan1;
+    register char *scan2;
+    size_t int count;
 
-       while (*s != '\0')
-               if (strchr(reject, *s++) == NULL)
-                       ++count;
-               else
-                       return count;
-
-       return count;
+    count = 0;
+    for (scan1 = s; *scan1 != '\0'; scan1++) {
+       for (scan2 = reject; *scan2 != '\0';)       /* ++ moved down. */
+           if (*scan1 == *scan2++)
+               return(count);
+       count++;
+    }
+    return(count);
 }
+