Well, data.str().c_str()
yields a char const*
but your function Printfunc()
wants to have char*
s. Based on the name, it doesn’t change the arguments but merely prints them and/or uses them to name a file, in which case you should probably fix your declaration to be
void Printfunc(int a, char const* loc, char const* stream)
The alternative might be to turn the char const*
into a char*
but fixing the declaration is preferable:
Printfunc(num, addr, const_cast<char*>(data.str().c_str()));
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