int RandomSource_next(int bits, double* seed) {
*seed = (((long long) *seed * 0x5DEECE66DLL) + 0xBLL) & ((1LL << 48) - 1);
return (int)((signed long long) *seed >> (48 - bits));
}
int RandomSource_next(int bits, double* seed) {
阅读背景：
为什么这段代码在Objective-C中有效？我得到了BAD_ACCESS
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