Teach QByteArrayView how to parse numbers

Now that we don't need '\0'-termination on the data, this is possible.
Moved QByteArray's tests to tst_QByteArrayApiSymmetry and added some
more test-cases.

[ChangeLog][QtCore][QByteArrayView] Added numeric parsing methods.

Change-Id: Ic0df91ecfe5dbf6f008d344dd0464d7927f32273
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

1 files changed, 22 insertions, 1 deletions

diff --git a/src/corelib/doc/snippets/code/src_corelib_text_qbytearrayview.cpp b/src/corelib/doc/snippets/code/src_corelib_text_qbytearrayview.cpp
index d70caa2650..519f609790 100644
--- a/src/corelib/doc/snippets/code/src_corelib_text_qbytearrayview.cpp
+++ b/src/corelib/doc/snippets/code/src_corelib_text_qbytearrayview.cpp
@@ -1,6 +1,6 @@
 /****************************************************************************
 **
-** Copyright (C) 2020 The Qt Company Ltd.
+** Copyright (C) 2021 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** This file is part of the documentation of the Qt Toolkit.
@@ -58,3 +58,24 @@
     void fun(QByteArrayView bv);
     void fun(char ch) { fun(QByteArrayView(&ch, 1)); }
 //! [1]
+
+//! [2]
+QByteArrayView str("FF");
+bool ok;
+int hex = str.toInt(&ok, 16);     // hex == 255, ok == true
+int dec = str.toInt(&ok, 10);     // dec == 0, ok == false
+//! [2]
+
+//! [3]
+QByteArrayView str("FF");
+bool ok;
+long hex = str.toLong(&ok, 16);   // hex == 255, ok == true
+long dec = str.toLong(&ok, 10);   // dec == 0, ok == false
+//! [3]
+
+//! [4]
+QByteArrayView string("1234.56 Volt");
+bool ok;
+float a = str.toFloat(&ok);       // a == 0, ok == false
+a = string.first(7).toFloat(&ok); // a == 1234.56, ok == true
+//! [4]