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Diffstat (limited to 'tools/include')
-rw-r--r--tools/include/linux/ctype.h17
1 files changed, 12 insertions, 5 deletions
diff --git a/tools/include/linux/ctype.h b/tools/include/linux/ctype.h
index 310090b4c474..29ed3fe94404 100644
--- a/tools/include/linux/ctype.h
+++ b/tools/include/linux/ctype.h
@@ -2,6 +2,8 @@
#ifndef _LINUX_CTYPE_H
#define _LINUX_CTYPE_H
+#include <linux/compiler.h>
+
/*
* NOTE! This ctype does not handle EOF like the standard C
* library is required to.
@@ -23,11 +25,6 @@ extern const unsigned char _ctype[];
#define isalnum(c) ((__ismask(c)&(_U|_L|_D)) != 0)
#define isalpha(c) ((__ismask(c)&(_U|_L)) != 0)
#define iscntrl(c) ((__ismask(c)&(_C)) != 0)
-static inline int __isdigit(int c)
-{
- return '0' <= c && c <= '9';
-}
-#define isdigit(c) __isdigit(c)
#define isgraph(c) ((__ismask(c)&(_P|_U|_L|_D)) != 0)
#define islower(c) ((__ismask(c)&(_L)) != 0)
#define isprint(c) ((__ismask(c)&(_P|_U|_L|_D|_SP)) != 0)
@@ -40,6 +37,16 @@ static inline int __isdigit(int c)
#define isascii(c) (((unsigned char)(c))<=0x7f)
#define toascii(c) (((unsigned char)(c))&0x7f)
+#if __has_builtin(__builtin_isdigit)
+#define isdigit(c) __builtin_isdigit(c)
+#else
+static inline int __isdigit(int c)
+{
+ return '0' <= c && c <= '9';
+}
+#define isdigit(c) __isdigit(c)
+#endif
+
static inline unsigned char __tolower(unsigned char c)
{
if (isupper(c))