rand0.c

来自「经典书籍：C Primer Plus(第五版)中文版和源代码 本书全面讲述了C」· C语言 代码 · 共 12 行

/* rand0.c -- produces random numbers            */
/*               uses ANSI C portable algorithm  */
static unsigned long int next = 1;  /* the seed  */

int rand0(void)
{
/* magic formula to generate pseudorandom number */
     next = next * 1103515245 + 12345;   
     return (unsigned int) (next/65536) % 32768;
}