X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=lib%2Ffreading.h;fp=lib%2Ffreading.h;h=5c41ae4451b381b0ffc396ae6fbdae3e76f0804d;hb=c7e61475680fa226bd9b8bdd469cd66914e630f5;hp=0000000000000000000000000000000000000000;hpb=800deb09b422a73c1212233a93839a223ff59678;p=debian%2Fgzip
diff --git a/lib/freading.h b/lib/freading.h
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+/* Retrieve information about a FILE stream.
+ Copyright (C) 2007-2008 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see . */
+
+#include
+#include
+
+/* Return true if the stream STREAM is opened read-only, or if the
+ last operation on the stream was a read operation. Return false if
+ the stream is opened write-only or append-only, or if it supports
+ writing and there is no current read operation (such as fgetc).
+
+ freading and fwriting will never both be true. If STREAM supports
+ both reads and writes, then:
+ - both freading and fwriting might be false when the stream is first
+ opened, after read encounters EOF, or after fflush,
+ - freading might be false or true and fwriting might be false
+ after repositioning (such as fseek, fsetpos, or rewind),
+ depending on the underlying implementation.
+
+ STREAM must not be wide-character oriented. */
+
+#if HAVE___FREADING && (!defined __GLIBC__ || __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
+/* Solaris >= 7, not glibc >= 2.2, but glibc >= 2.7 */
+
+# include
+# define freading(stream) (__freading (stream) != 0)
+
+#else
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
+extern bool freading (FILE *stream);
+
+# ifdef __cplusplus
+}
+# endif
+
+#endif