cosmopolitan/libc/intrin/safemacros.internal.h
Justine Tunney fa20edc44d
Reduce header complexity
- Remove most __ASSEMBLER__ __LINKER__ ifdefs
- Rename libc/intrin/bits.h to libc/serialize.h
- Block pthread cancelation in fchmodat() polyfill
- Remove `clang-format off` statements in third_party
2023-11-28 14:39:42 -08:00

70 lines
2.2 KiB
C

#ifndef COSMOPOLITAN_LIBC_BITS_SAFEMACROS_H_
#define COSMOPOLITAN_LIBC_BITS_SAFEMACROS_H_
#include "libc/macros.internal.h"
#include "libc/runtime/runtime.h"
COSMOPOLITAN_C_START_
#define min(x, y) \
({ \
autotype(x) MinX = (x); \
autotype(y) MinY = (y); \
MinX < MinY ? MinX : MinY; \
})
#define max(x, y) \
({ \
autotype(x) MaxX = (x); \
autotype(y) MaxY = (y); \
MaxX > MaxY ? MaxX : MaxY; \
})
#define roundup(x, k) \
({ \
autotype(x) RoundupX = (x); \
autotype(k) RoundupK = (k); \
ROUNDUP(RoundupX, RoundupK); \
})
#define rounddown(x, k) \
({ \
autotype(x) RounddownX = (x); \
autotype(k) RounddownK = (k); \
ROUNDDOWN(RounddownX, RounddownK); \
})
#define isempty(s) \
({ \
autotype(s) IsEmptyS = (s); \
!IsEmptyS || !(*IsEmptyS); \
})
#define nulltoempty(s) \
({ \
autotype(s) NullToEmptyS = (s); \
NullToEmptyS ? NullToEmptyS : ""; \
})
#define firstnonnull(a, b) \
({ \
autotype(a) FirstNonNullA = (a); \
autotype(a) FirstNonNullB = (b); \
if (!FirstNonNullA && !FirstNonNullB) abort(); \
FirstNonNullA ? FirstNonNullA : FirstNonNullB; \
})
#define emptytonull(s) \
({ \
autotype(s) EmptyToNullS = (s); \
EmptyToNullS && !(*EmptyToNullS) ? NULL : EmptyToNullS; \
})
#define unsignedsubtract(a, b) \
({ \
uint64_t UnsubA = (a); \
uint64_t UnsubB = (b); \
UnsubA >= UnsubB ? UnsubA - UnsubB : ~UnsubB + UnsubA + 1; \
})
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_BITS_SAFEMACROS_H_ */