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-rw-r--r--newlib/libc/ctype/isprint.c60
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diff --git a/newlib/libc/ctype/isprint.c b/newlib/libc/ctype/isprint.c
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+
+/*
+FUNCTION
+ <<isprint>>, <<isgraph>>---printable character predicates
+
+INDEX
+ isprint
+INDEX
+ isgraph
+
+ANSI_SYNOPSIS
+ #include <ctype.h>
+ int isprint(int <[c]>);
+ int isgraph(int <[c]>);
+
+TRAD_SYNOPSIS
+ #include <ctype.h>
+ int isprint(<[c]>);
+ int isgraph(<[c]>);
+
+
+DESCRIPTION
+<<isprint>> is a macro which classifies ASCII integer values by table
+lookup. It is a predicate returning non-zero for printable
+characters, and 0 for other character arguments.
+It is defined only when <<isascii>>(<[c]>) is true or <[c]> is EOF.
+
+You can use a compiled subroutine instead of the macro definition by
+undefining either macro using `<<#undef isprint>>' or `<<#undef isgraph>>'.
+
+RETURNS
+<<isprint>> returns non-zero if <[c]> is a printing character,
+(<<0x20>>--<<0x7E>>).
+<<isgraph>> behaves identically to <<isprint>>, except that the space
+character (<<0x20>>) is excluded.
+
+PORTABILITY
+<<isprint>> and <<isgraph>> are ANSI C.
+
+No supporting OS subroutines are required.
+*/
+
+#include <_ansi.h>
+#include <ctype.h>
+
+#undef isgraph
+int
+_DEFUN(isgraph,(c),int c)
+{
+ return((_ctype_ + 1)[c] & (_P|_U|_L|_N));
+}
+
+
+#undef isprint
+int
+_DEFUN(isprint,(c),int c)
+{
+ return((_ctype_ + 1)[c] & (_P|_U|_L|_N|_B));
+}
+