C++ What is the % operator doing here? -


i encountered code similar this:

std::string mystring = "test"; boost::format fmt("%s");  fmt % mystring;

what (second) % operator doing here?

edit:

i understand end result, not find definition of how % operator can used this.

can provide example explains meaning of % operator here?

i understand end result, not find definition of how % operator can used this.

operator % can overloaded. boost.format basic_format class:

template<class t>   basic_format&   operator%(const t& x)     { return io::detail::feed<chart, tr, alloc, const t&>(*this,x); }

this member function gets invoked whenever use code fmt % value fmt of type boost::basic_format<ch>.


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