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C++ templates or not
http://www.mozilla.org/hacking/portable-cpp.html#dont_use_templatesc++, portability, mozilla, templates, compilers, casting
18th of February 2004
The Mozilla C++ portability guide says that developers should not use templates in their C++ code. Damn! I just learnt how to use templates in my Object Oriented Programming in C++ course. They are so useful that I can't understand why the compilers can't support it.
"Don't use the C++ template feature. This feature is still not implemented by all compilers, and even when it is implemented, there is great variation. Most of the interesting things that you would want to do with templates (type safe container classes, etc.) can be implemented with macros and casting, even though you do lose the type safety (pity). Often times subclassing can easily achieve the same result."
Without templates you have to write one function for every type:
int tmp = x; x = y; y = tmp;
void swap(long & x, long & y)
long tmp = x; x = y; y = tmp;
And with templates you can generalise it like this:
void swap(T & x, T & y)
T tmp = x; x = y; y = tmp;
