Conver QString to char

[SGaist]

Hi,

One way to do that:

QByteArray utf8Data = myQString.toUtf8();
const char *string = utf8Data.constData();

[Q139]

What is the advantage compared to: toStdString().c_str(); ?

[Jeronimo]

@Q139 toStdString().c_str(); Where i put the QString here xD

[Jeronimo]

i'm trying with char not char *something

[Q139]

Char only hold 1 character, to hold more need multiple
QString qstr;
qstr.toStdString().c_str();

[SGaist]

Sorry, so used to the char * use case that I didn't thought about that one.

So something like char myChar = myString[0].toLatin1() ?

[Jeronimo]

@SGaist thx a lot for your help. it's possible to convert char for utf16??

[SGaist]

Not directly, utf-16 is at least 2 bytes, char is 1.

[Jeronimo]

@SGaist Ok so for example i dont want put char like utf16 but do the conversion for example in my if(conver UTF16(char)) it's possible? thx a lot!

[Paul Colby]

@Jeronimo said in Conver QString to char:

@SGaist thx a lot for your help. it's possible to convert char for utf16??

As @SGaist said, not with char. You'd need to use a wide char instead, such as:

wchar_t myChar = myString[0].unicode();

However, wchar_t is compiler / platform dependant, and not portable when used in this way.

What would you want to pass the UTF-16 character on to? QChar::unicode() would probably work for that case.

Cheers.

[Jeronimo]

@Paul-Colby said in Conver QString to char:

QChar::unicode()

solved i prefer this method:

QString cadena = "Hola";
std::string cadenaStd = cadena.toStdString();
QChar c = cadenaStd[0] or char

[SGaist]

Why not use QChar c = cadena[0] ?