libbb: introduce kernel-style BUILD_BUG_ON()

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-10-13 14:50:20 +02:00
parent f7ad927c20
commit ab3964db4e
9 changed files with 20 additions and 39 deletions
--- a/include/libbb.h
+++ b/include/libbb.h
@ -1901,6 +1901,7 @@ extern const char bb_default_login_shell[] ALIGN1;


 #define ARRAY_SIZE(x) ((unsigned)(sizeof(x) / sizeof((x)[0])))
+#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))


 /* We redefine ctype macros. Unicode-correct handling of char types