* libc/include/ctype.h: Remove isblank macro.

	* libc/ctype/Makefile.am (LIB_SOURCES): Add isblank.c.
	* libc/ctype/isblank.c: New file.
	* libc/include/ctype.h [!__STRICT_ANSI__]: Add isblank
	declaration.  Add isblank macro.

1 files changed, 40 insertions, 0 deletions

diff --git a/newlib/libc/ctype/isblank.c b/newlib/libc/ctype/isblank.c
new file mode 100644
index 000000000..c75d8ab02
--- /dev/null
+++ b/newlib/libc/ctype/isblank.c
@@ -0,0 +1,40 @@
+
+/*
+FUNCTION
+	<<isblank>>---blank character predicate
+
+INDEX
+	isblank
+
+ANSI_SYNOPSIS
+	#include <ctype.h>
+	int isblank(int <[c]>);
+
+TRAD_SYNOPSIS
+	#include <ctype.h>
+	int isblank(<[c]>);
+
+DESCRIPTION
+<<isblank>> is a macro which classifies ASCII integer values by table
+lookup.  It is a predicate returning non-zero for blank characters, and 0 
+for other characters.
+
+You can use a compiled subroutine instead of the macro definition by
+undefining the macro using `<<#undef isblank>>'.
+
+RETURNS
+<<isblank>> returns non-zero if <[c]> is a blank character.
+
+*/
+
+#include <_ansi.h>
+#include <ctype.h>
+
+
+
+#undef isblank
+int
+_DEFUN(isblank,(c),int c)
+{
+	return (c == ' ' || c == '\t');
+}