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-rw-r--r--include/ctype.h30
1 files changed, 18 insertions, 12 deletions
diff --git a/include/ctype.h b/include/ctype.h
index 19d9f35f5..78c839976 100644
--- a/include/ctype.h
+++ b/include/ctype.h
@@ -37,25 +37,31 @@
__BEGIN_DECLS
+#ifndef _ISbit
/* These are all the characteristics of characters.
If there get to be more than 16 distinct characteristics,
__ctype_mask_t will need to be adjusted. */
+# define _ISbit(bit) (1 << (bit))
+
enum
{
- _ISupper = 1 << 0, /* UPPERCASE. */
- _ISlower = 1 << 1, /* lowercase. */
- _ISalpha = 1 << 2, /* Alphabetic. */
- _ISdigit = 1 << 3, /* Numeric. */
- _ISxdigit = 1 << 4, /* Hexadecimal numeric. */
- _ISspace = 1 << 5, /* Whitespace. */
- _ISprint = 1 << 6, /* Printing. */
- _ISgraph = 1 << 7, /* Graphical. */
- _ISblank = 1 << 8, /* Blank (usually SPC and TAB). */
- _IScntrl = 1 << 9, /* Control character. */
- _ISpunct = 1 << 10, /* Punctuation. */
- _ISalnum = 1 << 11, /* Alphanumeric. */
+ _ISupper = _ISbit (0), /* UPPERCASE. */
+ _ISlower = _ISbit (1), /* lowercase. */
+ _ISalpha = _ISbit (2), /* Alphabetic. */
+ _ISdigit = _ISbit (3), /* Numeric. */
+ _ISxdigit = _ISbit (4), /* Hexadecimal numeric. */
+ _ISspace = _ISbit (5), /* Whitespace. */
+ _ISprint = _ISbit (6), /* Printing. */
+ _ISgraph = _ISbit (7), /* Graphical. */
+ _ISblank = _ISbit (8), /* Blank (usually SPC and TAB). */
+ _IScntrl = _ISbit (9), /* Control character. */
+ _ISpunct = _ISbit (10), /* Punctuation. */
+ _ISalnum = _ISbit (11) /* Alphanumeric. */
};
+#else
+#error _ISbit already defined!
+#endif /* ! _ISbit */
/* __ctype_XXX_t types and __UCLIBC_CTYPE_x_TBL_OFFSET constants */
#include <bits/uClibc_touplow.h>