How to convert from UTF-8 to ANSI using standard c++

Question

I have some strings read from the database, stored in a char* and in UTF-8 format (you know, \"á\" is encoded as 0xC3 0xA1). But, in order to write them to a file, I first n

Answer 1

#include 
#include 
#include 
#include 
#include 

using namespace std;
std::string utf8_to_string(const char *utf8str, const locale& loc){
    // UTF-8 to wstring
    wstring_convert> wconv;
    wstring wstr = wconv.from_bytes(utf8str);
    // wstring to string
    vector buf(wstr.size());
    use_facet>(loc).narrow(wstr.data(), wstr.data() + wstr.size(), '?', buf.data());
    return string(buf.data(), buf.size());
}

int main(int argc, char* argv[]){
    std::string ansi;
    char utf8txt[] = {0xc3, 0xa1, 0};

    // I guess you want to use Windows-1252 encoding...
    ansi = utf8_to_string(utf8txt, locale(".1252"));
    // Now do something with the string
    return 0;
}