optimize1.c

来自「xml大全 可读写调用率很高 xml大全 可读写调用率很高」· C语言 代码 · 共 72 行

C
72
字号
// { dg-do run  }// { dg-options "-O2" }// // Copyright (C) 2001 Free Software Foundation, Inc.// Contributed by Nathan Sidwell 18 May 2001 <nathan@codesourcery.com>// Bug 2781. We forgot to copy addressability information when// cloning.struct B{  B(int v1);  void Member (int v1);  static void Static (int v1);};struct D : B{  D (int v1);};void xswap(int& x1) ;int xxx = 0;B::B(int v1) {  xswap(v1);  xxx = v1;}void B::Member(int v1) {  xswap(v1);  xxx = v1;}void B::Static(int v1) {  xswap(v1);  xxx = v1;}D::D(int v1)  : B (v1){}void xswap (int& x1) { x1 = 2; }int main (){  B p (1);  if (xxx != 2)    return 1;  D q (1);  if (xxx != 2)    return 2;    p.Member (1);  if (xxx != 2)    return 3;  p.Static (1);  if (xxx != 2)    return 4;  return 0;}

⌨️ 快捷键说明

复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?