cosmopolitan/libc/testlib/fastrandomstring.h
2021-09-06 19:24:10 -07:00

16 lines
491 B
C

#ifndef COSMOPOLITAN_LIBC_TESTLIB_FASTRANDOMSTRING_H_
#define COSMOPOLITAN_LIBC_TESTLIB_FASTRANDOMSTRING_H_
#if !(__ASSEMBLER__ + __LINKER__ + 0)
static inline const char *FastRandomString(void) {
static unsigned long t;
static union {
unsigned long x;
char b[sizeof(unsigned long)];
} u;
u.x = (t = (t * 0xdeaadead) + 0xdeaadead) & 0x7e7e7e7e7e7e7e;
return u.b;
}
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
#endif /* COSMOPOLITAN_LIBC_TESTLIB_FASTRANDOMSTRING_H_ */