我试图将std::string
的值作为分隔符传递给std::getline()
函数,但无论我怎么尝试,编译器都会报错。
这是我想要做的:
std::stringstream ss(s);
std::string item;
std::string delim ="&&=";
int ssize = delim.size();
int newssize = ssize+1;
char del[SSIZE]; // also here when i try gives error
strcpy(del,delim.c_str());
char * delrr[1024] = delim.c_str(); //gives error
while(std::getline(ss,item,delrr)) {
elems.push_back(item);
}
我遇到的错误总是涉及到`const char *`转换。
error C2440: 'initializing' : cannot convert from 'const char *' to 'char *[1024]'
1> There are no conversions to array types, although there are conversions to references or pointers to arrays
1>.\UT.cpp(179) : error C2780: 'std::basic_istream<_Elem,_Traits> &std::getline(std::basic_istream<_Elem,_Traits> &,std::basic_string<_Elem,_Traits,_Alloc> &)' : expects 2 arguments - 3 provided
1> d:\Program Files\Microsoft Visual Studio 9.0\VC\include\string(527) : see declaration of 'std::getline'
1>.\UT.cpp(179) : error C2784: 'std::basic_istream<_Elem,_Traits> &std::getline(std::basic_istream<_Elem,_Traits> &,std::basic_string<_Elem,_Traits,_Alloc> &,const _Elem)' : could not deduce template argument for 'std::basic_istream<_Elem,_Traits> &' from 'std::stringstream'
1> d:\Program Files\Microsoft Visual Studio 9.0\VC\include\string(475) : see declaration of 'std::getline'
1>.\UT.cpp(179) : error C2784: 'std::basic_istream<_Elem,_Traits> &std::getline(std::basic_istream<_Elem,_Traits> &,std::basic_string<_Elem,_Traits,_Alloc> &,const _Elem)' : could not deduce template argument for 'std::basic_istream<_Elem,_Traits> &' from 'std::stringstream'
1> d:\Program Files\Microsoft Visual Studio 9.0\VC\include\string(475) : see declaration of 'std::getline'
1>.\UT.cpp(179) : error C2782: 'std::basic_istream<_Elem,_Traits> &std::getline(std::basic_istream<_Elem,_Traits> &,std::basic_string<_Elem,_Traits,_Alloc> &,const _Elem)' : template parameter '_Elem' is ambiguous
1> d:\Program Files\Microsoft Visual Studio 9.0\VC\include\string(475) : see declaration of 'std::getline'
1> could be 'char **'
1> or 'char'
更新:
找到了答案:如何在C++中对字符串进行分词?
http://www.codeproject.com/Articles/23198/C-String-Toolkit-StrTk-Tokenizer