Today I encounter a problem with my C++ code. I try to convert string to double. Then I realize in my computer std::atof doesn’t work properly. Also others(stof stod) doesn’t not work correctly. Then I decide to find the issue. I write to simple script to print all output of those functions.
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// #include <iostream> #include <stdlib.h> int main(int argc, char *argv[]) { std::string num = "3.5"; std::cout<<num<<std::endl; double ret = std::atof(num.c_str()); std::cout<<ret<<std::endl; std::cout<<ret+0.1<<std::endl; ret = std::stof(num); std::cout<<ret<<std::endl; std::cout<<ret+0.1<<std::endl; ret = std::stod(num); std::cout<<ret<<std::endl; std::cout<<ret+0.1<<std::endl; return 0; } |
Outputs:
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// 3.5 3 3.1 3 3.1 3 3.1 |
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