Questions tagged «gcc-extensions»

参照js0n.c 代码语法如下： static void *gostruct[] = { [0 ... 255] = &&l_bad, ['\t'] = &&l_loop, [' '] = &&l_loop, ['\r'] = &&l_loop, ['\n'] = &&l_loop, ['"'] = &&l_qup, [':'] = &&l_loop, [','] = &&l_loop, ['['] = &&l_up, [']'] = &&l_down, // tracking [] and {} individually would allow fuller validation …

108 c  gcc-extensions 

我遇到了这个奇怪的C ++程序。 #include <iostream> using namespace std; int main() { int a = ({int x; cin >> x; x;}); cout << a; } 谁能解释发生了什么？这个结构叫做什么？

78 c++  syntax  language-extension  gcc-extensions