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  • C++ string to char *

    半伪代码:

    void main {

      string line;

      getline(ifs, line);
      replace(line.begin(), line.end(), ',', ' ');
      replace(line.begin(), line.end(), ' ', ' ');

      istringstream iss(line);
      string grid;
      while (getline(iss, grid)) {
        ret.push_back(grid);
      }

    }  

      (这段摘的)默认情况下,GCC 5在编译时会将std::string类型按c++11下std::__cxx11::basic_string<char> 来处理,这时如果你调用的库在编译时未启用c++11特性则其中的std::string实际上是std::basic_string<char> ,这时如果将c++11下的string当作参数传入非c++11的库时,就会出现error: cannot convert 'const std::__cxx11::basic_string<char>' to 'const char*',或者未定义的方法引用(undefined reference

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  • 原文地址:https://www.cnblogs.com/kilen/p/7009413.html
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