cosmopolitan/tool/plinko/lib/histo.h
2022-04-07 20:30:22 -07:00

20 lines
639 B
C

#ifndef COSMOPOLITAN_TOOL_PLINKO_LIB_HISTO_H_
#define COSMOPOLITAN_TOOL_PLINKO_LIB_HISTO_H_
#include "libc/macros.internal.h"
#include "libc/nexgen32e/bsr.h"
#if !(__ASSEMBLER__ + __LINKER__ + 0)
COSMOPOLITAN_C_START_
#define HISTO(H, X) \
do { \
uint64_t x_ = X; \
x_ = x_ ? bsrl(x_) + 1 : x_; \
++H[MIN(x_, ARRAYLEN(H) - 1)]; \
} while (0)
void PrintHistogram(int, const char *, const long *, size_t);
long GetLongSum(const long *, size_t);
COSMOPOLITAN_C_END_
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_TOOL_PLINKO_LIB_HISTO_H_ */