Switch case in Qt

dan1973

the Swtich case x ... y is not working in Qt.

it gives missing ; error.

How to use multiple sequential Cases for ex: case 1 ... 100

jsulm

@dan1973 Can you please be more specific?
What code did you write?
Qt is not a programming language, so there is no "switch case in Qt".

JonB

@dan1973 said in Switch case in Qt:

How to use multiple sequential Cases for ex: case 1 ... 100

And further to @jsulm C++ does not support this (e.g. "ranges") in a switch...case anyway. C++ is not, say, Python with a match statement. For a range in C++ you'll want to write something like if (x >= 1 && x <= 100) rather than a switch-case.

P.S.

it gives missing ; error.

Then your C++ code is incorrect, nothing to do with Qt.

Pl45m4

@dan1973 said in Switch case in Qt:

How to use multiple sequential Cases for ex: case 1 ... 100

Good luck with writing a separate case for every number :))
(No, don't try that. For your use-case there are other options in C++. You may consider even a simple if - statement)

As previously being said, there is no such switch-case in C++.

See here for further info.

Type

condition can only yield the following types:

integral types

enumeration types

class types

If the yielded value is of a class type, it is contextually implicitly converted to an integral or enumeration type.
If the (possibly converted) type is subject to integral promotions , the yielded value is converted to the promoted type.