[英]G++-5 tr1/regex regex_replace could not be resolved
I am using G++-5 with the dialect option -std=c++0x
and the preprocessor symbol __GXX_EXPERIMENTAL_CXX0X__
and I am trying to use the tr1/regex
. 我将G ++-5与方言选项
-std=c++0x
和预处理器符号__GXX_EXPERIMENTAL_CXX0X__
一起使用,并且尝试使用tr1/regex
。
I use #include <tr1/regex>
with using namespace std::tr1;
我使用
#include <tr1/regex>
和using namespace std::tr1;
and regex reg("<[^>]*>");
和
regex reg("<[^>]*>");
trows no error. 没有错误。 Only when I use
regex_replace(line, reg, "");
仅当我使用
regex_replace(line, reg, "");
afterwards, I get the following error output: 之后,我得到以下错误输出:
Function 'regex_replace' could not be resolved test.cpp /cppUni/src line 72 Semantic Error
Invalid arguments '
Candidates are:
#0 regex_replace(#0, #1, #1, const std::tr1::basic_regex<#3,#2> &, const ? &, std::bitset<unsigned long int11>)
? regex_replace(const ? &, const std::tr1::basic_regex<#1,#0> &, const ? &, std::bitset<unsigned long int11>)
' test.cpp /cppUni/src line 72 Semantic Error
I verified, that line
is a String. 我确认,那条
line
是一个字符串。
I searched for a solution the last couple of hours and could only find solutions that involved what I attempted. 我在最近几个小时内寻找解决方案,但只能找到涉及我尝试的解决方案。 Unfortunately I can't use the
boost/regex
package. 不幸的是,我不能使用
boost/regex
软件包。
Is there a solution for this issue? 这个问题有解决方案吗?
EDIT: 编辑:
#include <tr1/regex>
#include <iostream>
#include <string>
using namespace std;
int main(){
std::tr1::regex reg("<[^>]*>");
string line = "<Day>22</Day>";
if(line.find("<Day>") != string::npos)
{
line =std::tr1::regex_replace(line, reg, "");
cout<<line<<endl;
}
return 0;
}
g++-5 -std=c++11 -D__GXX_EXPERIMENTAL_CXX0X__ -Wall test.cpp -o test.out
To have this answered: User "Baum mit Augen" solved the issue by saying: 要回答这个问题,用户“ Baum mit Augen”通过说出了这一问题来解决了:
Alright, in tr1::regex you apparently need std::tr1::regex_replace(line, reg, string(""));.
好了,在tr1 :: regex中,您显然需要std :: tr1 :: regex_replace(line,reg,string(“”)));。 (Though that resulted in a linker error in Wandbox, but maybe they just don't have that legacy stuff installed, I dunno.) You should just use std::regex from C++11 instead, it works fine as I showed above.
(尽管这会导致Wandbox中出现链接器错误,但我不知道它们可能没有安装旧版内容,)您应该只使用C ++ 11中的std :: regex,如上所示,它可以正常工作。 – Baum mit Augen May 28 at 11:10
– Baum mit Augen 5月28日11:10
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