mm/include/libc/stdbool.h

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#ifndef LIBC_STDBOOL_H
#define LIBC_STDBOOL_H
#define __bool_true_false_are_defined 1
#ifndef __cplusplus
#if (__STDC_VERSION__ >= 202311L)
// bool is a type in C23, do not define it
#elif (__STDC_VERSION__ >= 199901L)
#define bool _Bool
#else
#define bool int
#endif
#define false 0
#define true 1
#endif /* __cplusplus */
#endif /* STDBOOL */