mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 11:37:35 +00:00
70 lines
2.2 KiB
C
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_ */
|