QString: add from{Ascii,Latin1,Utf8,Local8Bit() overloads for QByteArray

One of the more frequent uses for QByteArray::operator const char*()
is in passing a QByteArray to QString::fromLatin1().

But this is highly inefficient, since the bytearray already knows
its size, but since its demoted to a const char* in passing to
fromLatin1(), it forces the latter to call strlen() _again_.

The solution, then, is to add overloads for QByteArray that
pass the array's .size() as a second argument to the two-arg
fromLatin1() version.

Change-Id: I5ea1ad3c96d9e64167be53c0c418c7b7dba51f68
Reviewed-by: David Faure <faure@kde.org>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

0 files changed, 0 insertions, 0 deletions