From f028865d351fbeae38230183e58a77bc0ad0cc12 Mon Sep 17 00:00:00 2001 From: Nathan Binkert Date: Thu, 16 Nov 2006 13:18:21 -0800 Subject: add warn_once which will print any given warning message only once. --HG-- extra : convert_revision : b64bb495c1bd0c4beb3db6ca28fad5af4d05ef8e --- src/base/misc.hh | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/base/misc.hh') diff --git a/src/base/misc.hh b/src/base/misc.hh index 87faf20e6..1c5720ce1 100644 --- a/src/base/misc.hh +++ b/src/base/misc.hh @@ -76,6 +76,19 @@ void __warn(const std::string&, cp::ArgList &, const char*, const char*, int); #define warn(args...) \ __warn__(args, cp::ArgListNull()) +// Only print the warning message the first time it is seen. This +// doesn't check the warning string itself, it just only lets one +// warning come from the statement. So, even if the arguments change +// and that would have resulted in a different warning message, +// subsequent messages would still be supressed. +#define warn_once(args...) do { \ + static bool once = false; \ + if (!once) { \ + __warn__(args, cp::ArgListNull()); \ + once = true; \ + } \ + } while (0) + // // assert() that prints out the current cycle // -- cgit v1.2.3