User-defined conversions?
Jeff McGlynn
d at jeffrules.com
Tue Apr 3 16:22:33 PDT 2007
I'm in the process of translating my MySQL library from PHP to D. When
doing research I found that MySQL++ uses class operator overloading to
automatically convert classes to basic types like so:
C++ ------------------
class convert {
char * myVal;
MyClass(char * inString) {
myVal = inString;
}
operator int() {
// Convert myVal to an int here ...
return myValAsInt;
}
operator float() {
// Convert myVal to float here ...
return myValAsFloat;
}
};
int someInt = convert("346");
float someFloat = convert("346.3");
-------------------------
Is there any way to do something similar in D? The opCast function
just attempts to cast whatever is returned to the proper type, which
doesn't work for strings to ints.
--
Jeff McGlynn
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