C++11 正则表达式std::regex_replace崩溃,为什么?

布鲁克零三四四 2016-10-20 03:31:05
为什么崩溃?奇怪(VS2012 Update5测试)

std::string contents = "begin\r\n\r\r\n\
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb\
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc\
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd\
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee\
ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff \
ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg\
hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\
sssssssssssssssssssssssssssssssssssssssssssssssssssssssssss end";
std::regex rg( "begin(.|\\r|\\n)*end") ;
std::string ret = std::regex_replace( contents , rg , "" ); //为什么这里崩溃
...全文
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赵4老师 2016-10-20
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重建所有
赵4老师 2016-10-20
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请一字不差地将以下内容放在ConsoleApplication1.cpp中,将其它所有.h,.cpp,.txt从项目中移除。再试试。
#include <string>
#include <regex>
#include <iostream>
using namespace std;
int main() {
    string contents = string("Abegin\r\n\r\r\n"
       "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
       "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
       "ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"
       "dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
       "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
       "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
       "ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg"
       "hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh"
       "sssssssssssssssssssssssssssssssssssssssssssssssssssssssssss endB");
    regex rg(string("begin(.|\\r|\\n)*end")) ;
    string ret = regex_replace( contents , rg , string("") );
    cout<<ret<<endl;//AB
    return 0;
}
赵4老师 2016-10-20
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我用的是VS2010
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换了vs2015还是崩溃,就这点代码,已经试了三个小时了就是无法解决崩溃问题唉,怎么改都没用
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引用 1 楼 zhao4zhong1 的回复:
#include <string>
#include <regex>
#include <iostream>
int main() {
    std::string contents = "Abegin\r\n\r\r\n"
       "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
       "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
       "ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"
       "dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
       "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
       "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
       "ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg"
       "hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh"
       "sssssssssssssssssssssssssssssssssssssssssssssssssssssssssss endB";
    std::regex rg(std::string("begin(.|\\r|\\n)*end")) ;
    std::string ret = std::regex_replace( contents , rg , std::string("") );
    std::cout<<ret<<std::endl;//AB
    return 0;
}
空项目复制进去,还是崩溃了,怎么办?
引用 1 楼 zhao4zhong1 的回复:
#include <string>
#include <regex>
#include <iostream>
int main() {
    std::string contents = "Abegin\r\n\r\r\n"
       "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
       "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
       "ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"
       "dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
       "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
       "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
       "ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg"
       "hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh"
       "sssssssssssssssssssssssssssssssssssssssssssssssssssssssssss endB";
    std::regex rg(std::string("begin(.|\\r|\\n)*end")) ;
    std::string ret = std::regex_replace( contents , rg , std::string("") );
    std::cout<<ret<<std::endl;//AB
    return 0;
}
空项目复制进去,还是崩溃了,怎么办?
paschen 版主 2016-10-20
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赵4老师 2016-10-20
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#include <string>
#include <regex>
#include <iostream>
int main() {
    std::string contents = "Abegin\r\n\r\r\n"
       "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
       "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"
       "ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc"
       "dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd"
       "eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee"
       "ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
       "ggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg"
       "hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh"
       "sssssssssssssssssssssssssssssssssssssssssssssssssssssssssss endB";
    std::regex rg(std::string("begin(.|\\r|\\n)*end")) ;
    std::string ret = std::regex_replace( contents , rg , std::string("") );
    std::cout<<ret<<std::endl;//AB
    return 0;
}

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