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core: add macros NM_FLAGS_HAS(), NM_FLAGS_ANY() and NM_FLAGS_ALL()

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Signed-off-by: Thomas Haller <thaller@redhat.com>
This commit is contained in:
Thomas Haller 2014-08-18 17:17:47 +02:00
parent 3adeffe1f1
commit bda076bb3c
1 changed files with 9 additions and 0 deletions
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9
src/NetworkManagerUtils.h
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@ -38,6 +38,15 @@ int nm_spawn_process (const char *args);
/* macro to return strlen() of a compile time string. */
#define STRLEN(str) ( sizeof ("" str) - 1 )
/* check if @flags has exactly one flag (@check) set. You should call this
* only with @check being a compile time constant and a power of two. */
#define NM_FLAGS_HAS(flags, check) \
( (G_STATIC_ASSERT_EXPR ( ((check) != 0) && ((check) & ((check)-1)) == 0 )), (NM_FLAGS_ANY ((flags), (check))) )
#define NM_FLAGS_ANY(flags, check) ( ( ((flags) & (check)) != 0 ) ? TRUE : FALSE )
#define NM_FLAGS_ALL(flags, check) ( ( ((flags) & (check)) == (check) ) ? TRUE : FALSE )
/**
* str_if_set:
* @str: input string that will be returned if @str is not %NULL