enum type in C++

Question

This works:

enum TPriority { EPriorityIdle = -100, EPriorityLow = -20, EPriorityStandard = 0, EPriorityUserInput = 10, EPriorityHigh = 20 }; TPriority priority = EPriorityIdle;

But this doesn't work:

TPriority priority = -100;

Any reason?

Victor · Accepted Answer · 2010-05-15 10:55:39Z

10

It works too, but you need explicit type

TPriority priority = (TPriority)-100;

answered May 15, 2010 at 10:55

Victor

3,5273 gold badges42 silver badges54 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

AndersK · Accepted Answer · 2010-05-15 10:58:49Z

4

shortly put: it defeats the purpose of having an enum

answered May 15, 2010 at 10:58

AndersK

36.1k6 gold badges63 silver badges86 bronze badges

Comments

ThiefMaster · Accepted Answer · 2010-05-15 10:55:44Z

You cannot assign an int to an enum, even if the value matches one of the enum's values.

However, casting will work:

TPriority priority = static_cast<TPriority>(-100);

pmr · Accepted Answer · 2010-05-15 10:57:38Z

There is no type conversion from the values of an enum type to the enum type itself. Only the other way around.

Collectives™ on Stack Overflow

enum type in C++

4 Answers 4

Comments

Comments

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

Comments

Comments

Comments

Comments

Related