c++ - C++ 中的正则表达式 : Requires compiler support error

Question

我正在尝试在 C++ 中使用 regex。以下是我的代码:

#include<iostream>
#include<stdlib.h>
#include<string.h>
#include<regex>
using namespace std;

int main(int argc, char** argv) {
    string A = "Hello!";
    regex pattern = "(H)(.*)";
    if (regex_match(A, pattern)) {
        cout << "It worked!";
    }
    return 0;
}

但是我遇到了这个错误:

In file included from /usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/regex:35:0,
                 from main.cpp:12:
/usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/bits/c++0x_warning.h:31:2: error: #error This file requires compiler and library support for the upcoming ISO C++ standard, C++0x. This support is currently experimental, and must be enabled with the -std=c++0x or -std=gnu++0x compiler options.

这个怎么解决，哪里出了问题？

Answer 1

and must be enabled with the -std=c++0x or -std=gnu++0x compiler options

将其中一个选项 -std=c++0x 或 -std=gnu++0x 添加到您的编译器命令中:

g++ -std=c++0x ...

如果不支持 std::regex 请注意，请参阅 boost::regex寻找替代方案。