X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fargmatch.h;h=e4c8027144a82e2c4cb11e0767fe4fb4fe79f694;hb=c96bab3fee48a9df55e7366344f838e1fc785c28;hp=4972abe956c22101b1803b9eea851b4fb4047a9c;hpb=441aa3044f43e5572f58c354f01e6bc070acd5c7;p=gnulib.git

diff --git a/lib/argmatch.h b/lib/argmatch.h
index 4972abe95..e4c802714 100644
--- a/lib/argmatch.h
+++ b/lib/argmatch.h
@@ -1,6 +1,6 @@
 /* argmatch.h -- definitions and prototypes for argmatch.c
 
-   Copyright (C) 1990, 1998, 1999, 2001, 2002, 2004, 2005 Free Software
+   Copyright (C) 1990, 1998-1999, 2001-2002, 2004-2005, 2009-2013 Free Software
    Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
@@ -26,6 +26,10 @@
 
 # include "verify.h"
 
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
 # define ARRAY_CARDINALITY(Array) (sizeof (Array) / sizeof *(Array))
 
 /* Assert there are as many real arguments as there are values
@@ -40,14 +44,14 @@
    to the same values in VALLIST).  */
 
 ptrdiff_t argmatch (char const *arg, char const *const *arglist,
-                    char const *vallist, size_t valsize);
+                    char const *vallist, size_t valsize) _GL_ATTRIBUTE_PURE;
 
 # define ARGMATCH(Arg, Arglist, Vallist) \
   argmatch (Arg, Arglist, (char const *) (Vallist), sizeof *(Vallist))
 
 /* xargmatch calls this function when it fails.  This function should not
    return.  By default, this is a function that calls ARGMATCH_DIE which
-   in turn defaults to `exit (exit_failure)'.  */
+   in turn defaults to 'exit (exit_failure)'.  */
 typedef void (*argmatch_exit_fn) (void);
 extern argmatch_exit_fn argmatch_die;
 
@@ -73,8 +77,8 @@ void argmatch_valid (char const *const *arglist,
 
 
 
-/* Same as argmatch, but upon failure, reports a explanation on the
-   failure, and exits using the function EXIT_FN. */
+/* Same as argmatch, but upon failure, report an explanation of the
+   failure, and exit using the function EXIT_FN. */
 
 ptrdiff_t __xargmatch_internal (char const *context,
                                 char const *arg, char const *const *arglist,
@@ -93,10 +97,15 @@ ptrdiff_t __xargmatch_internal (char const *context,
 
 char const *argmatch_to_argument (char const *value,
                                   char const *const *arglist,
-                                  char const *vallist, size_t valsize);
+                                  char const *vallist, size_t valsize)
+  _GL_ATTRIBUTE_PURE;
 
 # define ARGMATCH_TO_ARGUMENT(Value, Arglist, Vallist)                  \
   argmatch_to_argument (Value, Arglist,                                 \
                         (char const *) (Vallist), sizeof *(Vallist))
 
+#ifdef  __cplusplus
+}
+#endif
+
 #endif /* ARGMATCH_H_ */