Coversion of QString to char array

[Naveen_D]

Hi all,

I want to convert QString to char array. how can i do this ?

for eg: i have a QString Str="Qt Qml Development"
and a char text[100]={"Some text "}

i want to replace Some text with the above Str

Can anyone please guide me how i can do this.

Thanks

[J.Hilk]

@Naveen_D hi,
seems like static_cast<char> should help you.

I'm not sur if you can convert a QString into an char-array directly, therefore I propose this:

//Warning untested code
QString myString;
char text [myString.length())];

for(int i = 0; i < myString.length(); i++)
    text[i] = static_cast<char>(myString.at(i));

This would also be a bit easier if you used QChar

[Naveen_D]

@J.Hilk Thanks for the reply,

i tried with this i am getting the following error

error: invalid static_cast from type ‘const QChar’ to type ‘char’
text[i] = static_cast<char>(myString.at(i));

error: invalid conversion from ‘char*’ to ‘char’ [-fpermissive]
char text[100] = {textStr};

i tried like this ->

QString myString="Qt Qml";
        char textStr [myString.length()];
        for(int i = 0; i < myString.length(); i++)
            textStr[i] = static_cast<char>(myString.at(i));
        char text[100] = {textStr};

[Eeli K]

@Naveen_D Use toLocal8Bit() or toLatin1() and use QByteArray::data and possibly QByteArray/Related Non-Members/qstrcpy.

[VRonin]

depends on the encoding. for UTF-8:

const QByteArray stringData = myString.toUtf8();
char text[100];
text[qMin(99,stringData.size())]='\0';
std::copy(stringData.constBegin(),stringData.constBegin()+qMin(99,stringData.size()),text);

This, of course, might truncate any multi-byte character at the end of the string

char textStr [myString.length()]; this is not valid C++ syntax

[Naveen_D]

@VRonin Thank you sir. it is working now. \o/