ref: e6baf91cf4a7df1de7d0d64688cf3f5ed0b89d1a dir: /lib/c/include/stdbool.h/
#ifndef _STDBOOL_H #define _STDBOOL_H #define bool _Bool #define true ((bool) 1) #define false ((bool) 0) #define __bool_true_false_are_defined 1 #endif