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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/v1_1r@215 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 0 deletions

diff --git a/ruby.h b/ruby.h
index 3ad90719a3..e4bc0f7fdf 100644
--- a/ruby.h
+++ b/ruby.h
@@ -31,6 +31,18 @@ extern "C" {
 # include <strings.h>
 #endif
 
+#include <stdio.h>
+
+/* need to include <ctype.h> to use these macros */
+#define ISSPACE(c) isspace((unsigned char)(c))
+#define ISUPPER(c) isupper((unsigned char)(c))
+#define ISLOWER(c) islower((unsigned char)(c))
+#define ISPRINT(c) isprint((unsigned char)(c))
+#define ISALNUM(c) isalnum((unsigned char)(c))
+#define ISALPHA(c) isalpha((unsigned char)(c))
+#define ISDIGIT(c) isdigit((unsigned char)(c))
+#define ISXDIGIT(c) isxdigit((unsigned char)(c))
+
 #ifndef __STDC__
 # define volatile
 # ifdef __GNUC__