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util: Add debug_printf_once
author
Micah Dowty
<micah@vmware.com>
Fri, 24 Apr 2009 21:45:16 +0000
(23:45 +0200)
committer
Jakob Bornecrantz
<jakob@vmware.com>
Fri, 24 Apr 2009 21:59:21 +0000
(23:59 +0200)
src/gallium/auxiliary/util/u_debug.h
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diff --git
a/src/gallium/auxiliary/util/u_debug.h
b/src/gallium/auxiliary/util/u_debug.h
index
bcd8f0f
..
d42b65c
100644
(file)
--- a/
src/gallium/auxiliary/util/u_debug.h
+++ b/
src/gallium/auxiliary/util/u_debug.h
@@
-102,6
+102,22
@@
debug_printf(const char *format, ...)
}
+/*
+ * ... isn't portable so we need to pass arguments in parentheses.
+ *
+ * usage:
+ * debug_printf_once(("awnser: %i\n", 42));
+ */
+#define debug_printf_once(args) \
+ do { \
+ static boolean once = TRUE; \
+ if (once) { \
+ once = FALSE; \
+ debug_printf args; \
+ } \
+ } while (0)
+
+
#ifdef DEBUG
#define debug_vprintf(_format, _ap) _debug_vprintf(_format, _ap)
#else