/prog/ - 1.0 vs 1

Name: Anonymous 2010-05-22 15:00

Does it really matter if something is a float or an integer? I mean COME ON!

Name: sager 2010-05-22 15:02

yes, shitty precision and slower performance for the same semantic.
also, OP is a faggot

Name: Anonymous 2010-05-22 15:04

>>1
yes it does bitch!
the processor uses a completly different part to compute float, and besides, floats have a limited precision.

Name: sager 2010-05-22 15:04

>>3
>>1
Samefagging like a biatch

Name: Anonymous 2010-05-22 15:05

Fucking idiot. Why don't you go cast pointers to long doubles while you're at it?

Name: Anonymous 2010-05-22 15:05

>>4
>>2
also samefaggot

Name: Anonymous 2010-05-22 15:08

>>4,6
Back to /$imageboard/, please.

Name: Anonymous 2010-05-22 15:10

>>7
oh, no no no!

Name: Anonymous 2010-05-22 15:13

>>8
oh, yes yes yes!

Name: Anonymous 2010-05-22 15:18

>>1-9
DERP

Name: Anonymous 2010-05-22 15:22

y = y₀ + (x - x₀) * (y₁ - y₀) / (x₁ - x₀)

LERP

Name: Anonymous 2010-05-22 15:23

>>10
N0!

Name: tem !!yveogcjgZXaSkSV 2010-05-22 15:30

$

Name: Anonymous 2010-05-22 15:52

How do I turn a float into a string? I tried char *text = (char *)float, but it doen't cast properly.

Name: Anonymous 2010-05-22 15:53

>>14
You used the wrong spell.

Name: Anonymous 2010-05-22 15:54

>>14
sprintf
What you did is quite wrong, C isn't SEPPLES or other high-level languages, when you cast something like that you'll just treat a piece of data as another type instead of actually convert it - doing that without proper understanding will only lead to wrong results.

Name: Anonymous 2010-05-22 15:56

>>16
okay. what about when I want to cast an integer? there doent seem to be a sprinti method.

Name: Anonymous 2010-05-22 15:59

>>17
I lol'd

Name: Anonymous 2010-05-22 15:59

>>14
casting only converts size, not the contents.
use “sprintf“.

Name: Anonymous 2010-05-22 16:39

>>19
casting only converts size, not the contents.
lol@dongs$ cat > c.c

#include <stdio.h>



int main(void)

{

    float a = 1.0;

    printf("%d\n", (int)a);

    return 0;

}

^D lol@dongs$ gcc c.c && ./a.out 1

Name: Anonymous 2010-05-22 18:21

>>20
Converting numeral types is one of the few exceptions.

Name: Anonymous 2010-05-22 18:38

>>21
All types are numeral types.

Name: Anonymous 2010-05-22 22:58

I can't say who is trolling anymore!

Name: Anonymous 2010-05-22 23:55

In C, 1.0 has type double, not float.

The More You Know
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Name: Anonymous 2010-05-22 23:57

>>24
In C, float a = 1.0; will leave you with a float stored in a. You can write 1.0f instead, but it's unnecessary. Even -Wall -Wextra -pedantic doesn't complain about it.

Name: Anonymous 2010-05-23 0:02

>>25
Correct! In C, the simple assignment operator (=) converts the type of its right operand to the type its left operand.

The More You Know
≡≡≡≡≡≡≡≡≡≡≡≡≡≡★

Name: Anonymous 2010-05-23 0:04

>>25
of course it doesn't complain. it doesn't complain if you do double a = 1.0; float b = a;, either.

Name: Anonymous 2010-05-23 0:10

>>27
fails on icc

Name: Anonymous 2010-05-23 0:12

>>28
Make sure you are compiling as C.

Name: Anonymous 2010-05-23 3:39

for (float f = 0.0; f != 10000000000.0; f += 1) printf("%f", f)

Do it, ``faggot''

Name: Anonymous 2010-05-23 3:40

f != 10000000000.0;
Gee.

Name: Anonymous 2010-12-06 9:56

^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^{^Ba}c}k}}t}o}}/}b}/},}}`}`}G}N}A}A}}F}a}g}g}o}t}'}'}

1.0 vs 1

1 Name: Anonymous 2010-05-22 15:00

2 Name: sager 2010-05-22 15:02

3 Name: Anonymous 2010-05-22 15:04

4 Name: sager 2010-05-22 15:04

5 Name: Anonymous 2010-05-22 15:05

6 Name: Anonymous 2010-05-22 15:05

7 Name: Anonymous 2010-05-22 15:08

8 Name: Anonymous 2010-05-22 15:10

9 Name: Anonymous 2010-05-22 15:13

10 Name: Anonymous 2010-05-22 15:18

11 Name: Anonymous 2010-05-22 15:22

12 Name: Anonymous 2010-05-22 15:23

13 Name: tem !!yveogcjgZXaSkSV 2010-05-22 15:30

14 Name: Anonymous 2010-05-22 15:52

15 Name: Anonymous 2010-05-22 15:53

16 Name: Anonymous 2010-05-22 15:54

17 Name: Anonymous 2010-05-22 15:56

18 Name: Anonymous 2010-05-22 15:59

19 Name: Anonymous 2010-05-22 15:59

20 Name: Anonymous 2010-05-22 16:39

21 Name: Anonymous 2010-05-22 18:21

22 Name: Anonymous 2010-05-22 18:38

23 Name: Anonymous 2010-05-22 22:58

24 Name: Anonymous 2010-05-22 23:55

25 Name: Anonymous 2010-05-22 23:57

26 Name: Anonymous 2010-05-23 0:02

27 Name: Anonymous 2010-05-23 0:04

28 Name: Anonymous 2010-05-23 0:10

29 Name: Anonymous 2010-05-23 0:12

30 Name: Anonymous 2010-05-23 3:39

31 Name: Anonymous 2010-05-23 3:40

33 Name: Anonymous 2010-12-06 9:56

Name: Anonymous 2010-05-22 15:00

Name: sager 2010-05-22 15:02

Name: Anonymous 2010-05-22 15:04

Name: sager 2010-05-22 15:04

Name: Anonymous 2010-05-22 15:05

Name: Anonymous 2010-05-22 15:05

Name: Anonymous 2010-05-22 15:08

Name: Anonymous 2010-05-22 15:10

Name: Anonymous 2010-05-22 15:13

Name: Anonymous 2010-05-22 15:18

Name: Anonymous 2010-05-22 15:22

Name: Anonymous 2010-05-22 15:23

Name: tem !!yveogcjgZXaSkSV 2010-05-22 15:30

Name: Anonymous 2010-05-22 15:52

Name: Anonymous 2010-05-22 15:53

Name: Anonymous 2010-05-22 15:54

Name: Anonymous 2010-05-22 15:56

Name: Anonymous 2010-05-22 15:59

Name: Anonymous 2010-05-22 15:59

Name: Anonymous 2010-05-22 16:39

Name: Anonymous 2010-05-22 18:21

Name: Anonymous 2010-05-22 18:38

Name: Anonymous 2010-05-22 22:58

Name: Anonymous 2010-05-22 23:55

Name: Anonymous 2010-05-22 23:57

Name: Anonymous 2010-05-23 0:02

Name: Anonymous 2010-05-23 0:04

Name: Anonymous 2010-05-23 0:10

Name: Anonymous 2010-05-23 0:12

Name: Anonymous 2010-05-23 3:39

Name: Anonymous 2010-05-23 3:40

Name: Anonymous 2010-12-06 9:56