Re: compiling C++ to C, was writing a compiler

>Templates are no problem, the C++ compiler instantiates them, and writes
>them out in C code.


I believe templates involve Linker magic, since they can be used in many
compilation units. Early cfront-like compilers either generated expanded
code in each unit or resorted to #pragmas to control where templates were
actually expanded.


Consider a templated class that defines a non-inline function.
--
mac the naof
[The tricky bit about templates is avoiding duplicate expansions of templates.
You can have a linker hack that tells the linker to discard multiple code and
data sections with the same name and "expanded template" type, or you can fake
it by a pass before linking that looks at the whole program and only then
decides what to expand. -John]

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