三种方式获得int的size
摘要：
size_t getIntSize() { int a[2]; return (char*)(a+1) - (char*)a;}size_t getIntSize2() { int n = 0; int i = 1; do { i = i << 8; n++; } while (i != 0); return n;}size_t getIntSize3() { union { short ival; char cval[8]; } v; for (int i = 0; i < 8; ++i) { v.cval[i] = 1; } v.ival = 0; int n = 0; 阅读全文
posted @ 2010-10-26 08:19 追海逐风 阅读(409) 评论(0) 推荐(0) 编辑