We have some Macros like
#define LOGG(out,line,file,.....)
std::stringstream logprocess; \
logprocess << std::stringstream(out) ; \
functiona(out,....,....);
}
So the thing to be passed to LOGG can be like:
LOGG(message<<"i would like to print"<<interger,......)
So we mainly use "<<" to constructor from whater ever type we want and then send to the MACRO LOGG. It works perfect with gnuc++ 98 but we it is compiled with -std=c++11, it gives error:
error: no match for 'operator<<' (operand types are 'std::stringstream {aka std::basic_stringstream}' and 'std::stringstream {aka std::basic_stringstream}')
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