Same as foreach(variable, container).
This macro is available even when no_keywords
is specified using the .pro
file's CONFIG
variable.
Note: Since Qt 5.7, the use of this macro is discouraged. It will be removed in a future version of Qt. Please use C++11 range-for, possibly with qAsConst(), as needed.
See also qAsConst().
Same as forever.
This macro is available even when no_keywords
is specified using the .pro
file's CONFIG
variable.
See also foreach().
This macro is used to implement Qt's foreach
loop. The variable parameter is a variable name or variable definition; the container parameter is a Qt container whose value type corresponds to the
type of the variable. See The foreach Keyword for details.
If you're worried about namespace pollution, you can disable this macro by adding the following line to your .pro
file:
CONFIG += no_keywords
Note: Since Qt 5.7, the use of this macro is discouraged. It will be removed in a future version of Qt. Please use C++11 range-for, possibly with qAsConst(), as needed.
See also qAsConst().
This macro is provided for convenience for writing infinite loops.
Example:
forever { ... }
It is equivalent to for (;;)
.
If you're worried about namespace pollution, you can disable this macro by adding the following line to your .pro
file:
CONFIG += no_keywords
See also Q_FOREVER.
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