Add unsigned char cast to ctype macros

1997-10-23 02:08:16 +00:00 · 1997-10-23 02:08:16 +00:00 · 62fe88f9af
commit 62fe88f9af
parent 833c9488dd
1 changed files with 1 additions and 1 deletions
--- a/gnu/usr.bin/grep/grep.c
+++ b/gnu/usr.bin/grep/grep.c
@ -532,7 +532,7 @@ int isBinaryFile(fd)

  /* look for non-printable chars */
  for(i = 0; i < n; i++)
-    if (!isprint(buf[i]) && !isspace(buf[i]))
+    if (!isprint((unsigned char)buf[i]) && !isspace((unsigned char)buf[i]))
      return(1);

  /* reset fd to begin of file */