lib/string/ctype/strchrisascii.h: Use stpcspn() to simplify

This compacts it into a one-liner, more similar to the strisascii_c()
functions.

Since we only use the argument once, we can even turn this into a macro.

Signed-off-by: Alejandro Colomar <[email protected]>

Author: alejandro-colomar

lib/string/ctype/strchrisascii.c

@@ -5,8 +5,3 @@
 #include "config.h"
 
 #include "string/ctype/strchrisascii.h"
-
-#include <stdbool.h>
-
-
-extern inline bool strchriscntrl(const char *s);

lib/string/ctype/strchrisascii.h

@@ -8,26 +8,13 @@
 
 #include "config.h"
 
-#include <stdbool.h>
-
 #include "string/ctype/isascii.h"
 #include "string/strcmp/streq.h"
-
-
-inline bool strchriscntrl_c(const char *s);
+#include "string/strspn/stpcspn.h"
 
 
 // strchriscntrl_c - string character is [:cntrl:] C-locale
-inline bool
-strchriscntrl_c(const char *s)
-{
-	for (; !streq(s, ""); s++) {
-		if (iscntrl_c(*s))
-			return true;
-	}
-
-	return false;
-}
+#define strchriscntrl_c(s)  (!streq(stpcspn(s, CTYPE_CNTRL_C), ""))
 
 
 #endif  // include guard