freading: declare with attribute "pure"

[gnulib.git] / lib / freading.h

diff --git a/lib/freading.h b/lib/freading.h
index e4aca78..3d1c7b2 100644 (file)
--- a/lib/freading.h
+++ b/lib/freading.h
@@ -44,7 +44,7 @@
 extern "C" {
 # endif
 
-extern bool freading (FILE *stream);
+extern bool freading (FILE *stream) _GL_ATTRIBUTE_PURE;
 
 # ifdef __cplusplus
 }