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authorPiotr Jaroszyński2010-07-18 17:53:47 +0200
committerMichael Brown2010-08-17 15:44:27 +0200
commit6e4573bcd049576f8890065fc78a2f43c995f45b (patch)
treea4a86ad869722979aa8120ab69b24b7e0951c6c5 /src/include/ctype.h
parent[settings] Export find_setting() (diff)
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[libc] Add isxdigit()
Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include/ctype.h')
-rw-r--r--src/include/ctype.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/ctype.h b/src/include/ctype.h
index ed4d8846..9f5127bf 100644
--- a/src/include/ctype.h
+++ b/src/include/ctype.h
@@ -11,6 +11,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
#define isdigit(c) ((c) >= '0' && (c) <= '9')
#define islower(c) ((c) >= 'a' && (c) <= 'z')
#define isupper(c) ((c) >= 'A' && (c) <= 'Z')
+#define isxdigit(c) (isdigit(c) || ((c) >= 'A' && (c) <= 'F') || ((c) >= 'a' && (c) <= 'f'))
static inline unsigned char tolower(unsigned char c)
{