info@hoekstra-uitgeverij.nl (Richard Bos) writes:

> Ted Dennison<dennison@telepath.com> wrote:
> 
> > compiler. Remember, "printf" actually has to stop and interpret the input string
> > to look for replacements.
> 
> No, it doesn't; not unless the format string isn't a constant.
Yes it does. The source code from printf is in the C library, so the compiler
cant optimise code such as 'printf("%d    %f   %s",i,f,str)', he cant
generate print_int(i);print_space(4);print_float(f);....
This is called partial evaluation, and in practice it is hard to put
in a compiler.



> Richard

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Yoann  Padioleau,  INSA de Rennes, France,   http://www.irisa.fr/prive/padiolea
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