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-rw-r--r--newlib/libc/include/_ansi.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/newlib/libc/include/_ansi.h b/newlib/libc/include/_ansi.h
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+++ b/newlib/libc/include/_ansi.h
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+/* Provide support for both ANSI and non-ANSI environments. */
+
+/* Some ANSI environments are "broken" in the sense that __STDC__ cannot be
+ relied upon to have it's intended meaning. Therefore we must use our own
+ concoction: _HAVE_STDC. Always use _HAVE_STDC instead of __STDC__ in newlib
+ sources!
+
+ To get a strict ANSI C environment, define macro __STRICT_ANSI__. This will
+ "comment out" the non-ANSI parts of the ANSI header files (non-ANSI header
+ files aren't affected). */
+
+#ifndef _ANSIDECL_H_
+#define _ANSIDECL_H_
+
+#include <sys/config.h>
+
+/* First try to figure out whether we really are in an ANSI C environment. */
+/* FIXME: This probably needs some work. Perhaps sys/config.h can be
+ prevailed upon to give us a clue. */
+
+#ifdef __STDC__
+#define _HAVE_STDC
+#endif
+
+#ifdef _HAVE_STDC
+#define _PTR void *
+#define _AND ,
+#define _NOARGS void
+#define _CONST const
+#define _VOLATILE volatile
+#define _SIGNED signed
+#define _DOTS , ...
+#define _VOID void
+#define _EXFUN(name, proto) name proto
+#define _DEFUN(name, arglist, args) name(args)
+#define _DEFUN_VOID(name) name(_NOARGS)
+#define _CAST_VOID (void)
+#ifndef _LONG_DOUBLE
+#define _LONG_DOUBLE long double
+#endif
+#ifndef _PARAMS
+#define _PARAMS(paramlist) paramlist
+#endif
+#else
+#define _PTR char *
+#define _AND ;
+#define _NOARGS
+#define _CONST
+#define _VOLATILE
+#define _SIGNED
+#define _DOTS
+#define _VOID void
+#define _EXFUN(name, proto) name()
+#define _DEFUN(name, arglist, args) name arglist args;
+#define _DEFUN_VOID(name) name()
+#define _CAST_VOID
+#define _LONG_DOUBLE double
+#ifndef _PARAMS
+#define _PARAMS(paramlist) ()
+#endif
+#endif
+
+/* Support gcc's __attribute__ facility. */
+
+#ifdef __GNUC__
+#define _ATTRIBUTE(attrs) __attribute__ (attrs)
+#else
+#define _ATTRIBUTE(attrs)
+#endif
+
+#endif /* _ANSIDECL_H_ */