X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/1f14c0c645ce384406e405000375c7fb9e60cc9e..1519ef6617fd7351bd40026b9eeb47c7f7f42234:/progs/factorial.c

diff --git a/progs/factorial.c b/progs/factorial.c
index 975c698c..ece0b305 100644
--- a/progs/factorial.c
+++ b/progs/factorial.c
@@ -34,6 +34,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <mLib/macros.h>
 #include <mLib/mdwopt.h>
 #include <mLib/quis.h>
 #include <mLib/report.h>
@@ -130,10 +131,10 @@ int main(int argc, char *argv[])
   }
   ulmax = mp_fromulong(MP_NEW, ULONG_MAX);
   p = argv[optind];
-  while (isspace((unsigned char)*p))
+  while (ISSPACE(*p))
     p++;
   xx = mp_readstring(MP_NEW, argv[optind], &p, 0);
-  while (isspace((unsigned char)*p))
+  while (ISSPACE(*p))
     p++;
   if (!xx || *p || MP_CMP(xx, <, MP_ZERO) || MP_CMP(xx, >, ulmax))
     die(EXIT_FAILURE, "bad integer `%s'", argv[optind]);