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I commonly find I need to convert an enum to a string in c++
I always end up doing:
enum Enum{ Banana, Orange, Apple } ;
char * getTextForEnum( int enumVal )
{
switch( enumVal )
{
case Enum::Banana:
return "bananas & monkeys";
case Enum::Orange:
return "Round and orange";
case Enum::Apple:
return "APPLE" ;
default:
return "Not recognized..";
}
}
Is there a better or recognized idiom for doing this?
3 Answers
enum Enum{ Banana, Orange, Apple } ;
static const char * EnumStrings[] = { "bananas & monkeys", "Round and orange", "APPLE" };
const char * getTextForEnum( int enumVal )
{
return EnumStrings[enumVal];
}
Kind of an anonymous lookup table rather than a long switch statement:
return (const char *[]) {
"bananas & monkeys",
"Round and orange",
"APPLE",
}[enumVal];
You could throw the enum value and string into an STL map. Then you could use it like so.
return myStringMap[Enum::Apple];
