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profiler: allow using gdk profiler functions without braces

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Just compiling these out means you have to write code slightly differently
so that you don't end up with "if ();" afterwards.

This adds a "do {} while (0)" so that we're still semantically a statement
but will also compile out.
This commit is contained in:
Christian Hergert 2021-02-02 14:41:23 -08:00
parent 207569c4ed
commit 226dc49602
1 changed files with 8 additions and 8 deletions
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16
gdk/gdkprofilerprivate.h
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@ -73,23 +73,23 @@ void gdk_profiler_set_int_counter (guint id,
gint64 value);
#ifndef HAVE_SYSPROF
#define gdk_profiler_add_mark(b, d, n, m)
#define gdk_profiler_end_mark(b, n, m)
#define gdk_profiler_add_mark(b, d, n, m) G_STMT_START {} G_STMT_END
#define gdk_profiler_end_mark(b, n, m) G_STMT_START {} G_STMT_END
/* Optimise the whole call out */
#if defined(G_HAVE_ISO_VARARGS)
#define gdk_profiler_add_markf(b, d, n, m, ...)
#define gdk_profiler_end_markf(b, n, m, ...)
#define gdk_profiler_add_markf(b, d, n, m, ...) G_STMT_START {} G_STMT_END
#define gdk_profiler_end_markf(b, n, m, ...) G_STMT_START {} G_STMT_END
#elif defined(G_HAVE_GNUC_VARARGS)
#define gdk_profiler_add_markf(b, d, n, m...)
#define gdk_profiler_end_markf(b, n, m...)
#define gdk_profiler_add_markf(b, d, n, m...) G_STMT_START {} G_STMT_END
#define gdk_profiler_end_markf(b, n, m...) G_STMT_START {} G_STMT_END
#else
/* no varargs macro support; the call will have to be optimised out by the compiler */
#endif
#define gdk_profiler_define_counter(n, d) 0
#define gdk_profiler_define_int_counter(n, d) 0
#define gdk_profiler_set_counter(i, v)
#define gdk_profiler_set_int_counter(i, v)
#define gdk_profiler_set_counter(i, v) G_STMT_START {} G_STMT_END
#define gdk_profiler_set_int_counter(i, v) G_STMT_START {} G_STMT_END
#endif
G_END_DECLS