I want to append integer value with string value but not a variable.
I tried to put an integer value which is variable with a string called February. I tried it using += operator but it did not work.
string getMonth(day) { if(day >=31 ){ day -= 31; "February "+=day; } } Do something like
#include <string> // ... std::string s( "February " ); s += std::to_string( day ); Here is a demonstrative program
#include <iostream> #include <string> int main() { std::string s( "February " ); int day = 20; s += std::to_string( day ); std::cout << s << '\n'; } Its output is
February 20 Another approach is to use a string stream.
Here is one more demonstrative program.
#include <iostream> #include <sstream> #include <string> int main() { std::ostringstream oss; int day = 20; oss << "February " << day; std::string s = oss.str(); std::cout << s << '\n'; } Its output is the same as shown above.
std::to_string is part of the standard since c++11. What compiler do you use?-std=c++11 to compiler options.The answer above solved my problem.. If you are using dev c++ like me then you might be in the same problem, I would recommend you to add -std=c++11. For this you can got to this link How to change mode from c++98 mode in Dev-C++ to a mode that supports C++0x (range based for)? and go to second answer. Thank you
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