fromAscii_helper 在Qt的源代码中,fromAscii_helper是QString类的一个内部方法,主要用于将ASCII字符串转换为QString对象。该方法的实现可能涉及到字符编码的处理和内存管理等方面。 在C++中,fromAscii_helper方法的原型可能类似于: staticQStringfromAscii_helper(const
QString QString::fromAscii(const char *str, int size) { return QString(fromAscii_helper(str, size), 0); } fromAscii会调用下面这个函数: QString::Data *QString::fromAscii_helper(const char *str, int size) { #ifndef QT_NO_TEXTCODEC if (codecForCStrings) { Data *d; if (!str) {...
QString QString::fromAscii(const char *str, int size) { return QString(fromAscii_helper(str, size), 0); } fromAscii会调用下面这个函数: QString::Data *QString::fromAscii_helper(const char *str, int size) { #ifndef QT_NO_TEXTCODEC if (codecForCStrings) { Data *d; if (!str) {...
QString QString::fromAscii(const char *str, int size){ return QString(fromAscii_helper(str, size), 0);} fromAscii会调⽤下⾯这个函数:QString::Data *QString::fromAscii_helper(const char *str, int size){ #ifndef QT_NO_TEXTCODEC if (codecForCStrings) { Data *d;if (!str) { d...
1、Qt Creator源码中,默认是打开QT_NO_CAST_FROM_ASCII这个宏的,看文档,这个宏就是禁用一切来自双引号或者单引号的字符串字面量传入QString的函数。但是我们裸写字符串不是非常平常的一件事情么?这里是Qt Creator断了我们一条道路,解决的方法还是有的,我这里提供两个方法,欢迎提出新的方法: ...
QString converts the const char * data into Unicode using the fromAscii() function. By default, fromAscii() treats character above 128 as Latin-1 characters, but this can be changed by calling QTextCodec.setCodecForCStrings().In all of the QString functions that take const char * ...
See also fromLatin1(), fromLocal8Bit(), fromUtf8(), QT_NO_CAST_FROM_ASCII, and QT_RESTRICTED_CAST_FROM_ASCII. QString::QString(const QByteArray &ba) Constructs a string initialized with the byte array ba. The given byte array is converted to Unicode using fromUtf8(). Stops copying...
()); void QtHelper::getCurrentInfo(char *argv[], QString &path, QString &name) { //必须用fromLocal8Bit保证中文路径正常 QString argv0 = QString::fromLocal8Bit(argv[0]); QFileInfo file(argv0); path = file.path(); name = file.baseName(); } QString QtHelper::getIniValue(const...
// Helper class wrapping a pointer that we can pass to the QString constructor struct QStringDataPtr { QStringData *ptr; }; #if defined(QT_UNICODE_LITERAL_II) // QT_UNICODE_LITERAL needed because of macro expension rules # define QT_UNICODE_LITERAL(str) QT_UNICODE_LITERAL_II(str) # ...
{} ^ /Users/eric/Qt5.9.7/5.9.7/clang_64/lib/QtCore.framework/Headers/qstring.h:880:17: note: candidate constructor not viable: no known conversion from 'int' to 'QLatin1String' for 1st argument inline QString::QString(QLatin1String aLatin1) : d(fromLatin1_helper(aLatin1... ^ ...