floatround problem - Printable Version

floatround problem - Printable Version

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floatround problem - polander - 04.06.2014

When i try this:

PHP код:



new a = 500;

new b = 10;

new c = floatround( b/100*a );

printf("Result: %d", c);

I get 'c' = 0, but the correct answer is 50. Wtf? Why?

Re: floatround problem - Rittik - 04.06.2014

pawn Код:

floatround(c, floatround_ceil);

Re: floatround problem - polander - 04.06.2014

PHP код:



new a = 498;

new b = 7;

new Float:d = b/100*a; // it's 34,86

new c = floatround( d ); // it's 35

printf("Result: %d", c);

What's wrong?

Re: floatround problem - Vince - 04.06.2014

The right part gets executed first and then the result is written to the part on the left. Define your operands as a float with the appropriate tag, or use float(), or use any of the float functions (floatmul, floatdiv). It might also simply work like this, although I'm not entirely sure;

pawn Код:

new Float:d = b/100.0*a;

The '.0' is important. Actually that should be done at all times when working with floating point values in Pawn. Even in functions like SetPlayerHealth, etc.

Re: floatround problem - polander - 04.06.2014

But really in pawn not observed mathematical action order?

Anyway thanks, i try this 'b/100.0*a' and it works.

Re: floatround problem - polander - 05.06.2014

I didnt't ignore your post, i just didn't consider it helpful, because given expression IS a float, but you wrote that it isn't..

Re: floatround problem - Rittik - 05.06.2014

Код:

new Float:a = 500.0; 
new Float:b = 10.0; 
new Float:d=b/100*a
new c = floatround(d,  floatround_ceil); 
printf("Result: %d", c);

Re: floatround problem - polander - 05.06.2014

******, i respect you and your jobs, but really, this answer wasn't enough informative for me. "Neither of your inputs are floats", and what? Why they arent'a floats? What should i do with this? Your knowledge is your knowledge and i can't read your mind, so i asked this topic question

Re: floatround problem - polander - 05.06.2014

Rittik, thank you, i already understood