Richard heathfields casting operation

[jameskuyper]

Is 3.0f required to be equal to (float)3.0 ?

No, and in general it won't be true. Try this:

#include <stdio.h>

int main(int argc, char *argv[])
{
float f = 0.1f;
double d = 0.1;
if (f == d)

That doesn't correspond to his question. Try the following instead:

if (f == (float)d)

I think you'll find that it works much better (though it's still not
guaranteed to work).,

 

[Keith Thompson]

Groovy hepcat Dik T. Winter was jivin' in comp.lang.c on Thu, 8 Nov 2007
12:18 pm. It's a cool scene! Dig it. [...]

Morover, the original did show how easy it is to get complex casts
right.

No, it showed how easy it is to get casts wrong. Hence the statement
that Philip "highlighted Yet Another Reason not to add spurious casts."

It did show how easy it is to get complex casts right -- i.e., not
very.