Template meta-programming rule of thumb

“Use template meta-programming to express design, not to express computation.”

Various explanations of template meta-programming uses examples like a compile-time Fibonnacci sequence. What those tutorials should be focusing on is how to use template meta-programming to hide incidental requirements of interfaces.

The ultimate goal of template meta-programming is to enable code like this:

int main()
{
    do_what_i_expect(/* args */);
    return 0;
}
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