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[code="c++"]#include #include #include #include std::mutex g_lock; void func(){ g_lock.lock(); std::cout

1. ＃:在宏展开的时候会将#后面的参数替换成字符串，如： ＃define p(exp) printf(#exp); 调用p(hello)的时候会将#exp换成”hello”The # operator should not be confused with the null directive.Use the # operator in a ...

函数原型：void *memcpy(void *dest, const void *src, size_t n)void *memmove(void *dest, const void *src, size_t n)两者的功能基本相同，唯一不同的是，当 dest 和 src 有重叠的时候选用不同的函数可能会造成不同的结果。memcpy的原理是从src的低地址开始到高...

[code="c++"]#include #include int main(){ int a [10 * 1024 * 1024]; a[0] = 1; return 0;}[/code]上面的代码运行就会crash。原因：ulimit -s10240可以看到linux配置的线程栈的大小为10M。函数里面使用...

[code="lpc"]void main(){ debug_message("%O","hello" == "hello"); debug_message("%O",[1,2]==[1,2]);}[/code]这段lpc代码会输出什么呢？我们先从字节码分析吧。[quote]STRINGS: 0: a.c 1: %O...

[code="lpc"]void main(){ mixed a = [1]; a += [2]; a += ["hello"]; a += [[1,2]]; a -= [2]; a -= ["hello"]; a -= [[1,2]]; debug_message("%O",a);}[/code]...

[color=red][size=medium]为什么需要boost::enable_shared_from_this？[/size][/color][code="c++"]class cat{};shared_ptr p(new cat);shared_ptr p2(p);class cat:public boost::enable_shared_from...

Why Worry About Byte OrderIn general, the underlying byte order of the processor is completely transparent to the programmer. However, there can be a problem, for example, when data is exchanged w...