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Diffstat (limited to 'src/corelib/io/qiodevice.cpp')
| -rw-r--r-- | src/corelib/io/qiodevice.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/corelib/io/qiodevice.cpp b/src/corelib/io/qiodevice.cpp index 7d46898911..95a5fb27cf 100644 --- a/src/corelib/io/qiodevice.cpp +++ b/src/corelib/io/qiodevice.cpp @@ -324,6 +324,23 @@ QIODevicePrivate::~QIODevicePrivate() terminators are translated to the local encoding, for example '\\r\\n' for Win32. \value Unbuffered Any buffer in the device is bypassed. + \value NewOnly Fail if the file to be opened already exists. Create and + open the file only if it does not exist. There is a + guarantee from the operating system that you are the only + one creating and opening the file. Note that this mode + implies WriteOnly, and combining it with ReadWrite is + allowed. This flag currently only affects QFile. Other + classes might use this flag in the future, but until then + using this flag with any classes other than QFile may + result in undefined behavior. + \value ExistingOnly Fail if the file to be opened does not exist. This flag + must be specified alongside ReadOnly, WriteOnly, or + ReadWrite. Note that using this flag with ReadOnly alone + is redundant, as ReadOnly already fails when the file does + not exist. This flag currently only affects QFile. Other + classes might use this flag in the future, but until then + using this flag with any classes other than QFile may + result in undefined behavior. Certain flags, such as \c Unbuffered and \c Truncate, are meaningless when used with some subclasses. Some of these |