Is there a way to convert a bool to string in c 20?-CodePudding

I need to convert a bool to a text string. Does anyone know how to do that?

I tried to use the

(std::string)bool

syntax but it didn't work.

CodePudding user response：

std::string does not define any conversion to/from bool. However, operator<< and operator>> for I/O streams do. For example, you can use a std::ostringstream to format a bool into a std::string, eg:

std::ostringstream oss;
oss << theBoolValue;
std::string s = oss.str();

By default, that will output 1 for true and 0 for false. If you want the result to actually say "true" or "false", you can use the std::boolalpha manipulator, eg:

oss << std::boolapha << theBoolValue;

CodePudding user response：

This is what Sam Varshavchik suggested in comment, basically, that is it:)

    bool b;
    ...
    
    printf("b is %s\n"
      , b ? "true" : "false"
      );

CodePudding user response：

Try with static_cast<std::string> bool