/prog/ - Input binary variables in C

Name: Anonymous 2009-06-16 9:42

how can i input binary variables in C?
like: int c=b01010101

Name: Anonymous 2009-06-16 9:45

all variables are stored in binary.

Name: Anonymous 2009-06-16 9:45

Convert them to decimal or hexadecimal.

Name: Anonymous 2009-06-16 9:46

You can't do that. Read the C FAQ.

Name: Anonymous 2009-06-16 9:48

The C compiler from Micrchip for PICs allows you to enter binary numbers. Computer programmers are more advanced. They use base₁₆.

Name: Anonymous 2009-06-16 9:52

write a perl script

Name: Anonymous 2009-06-16 10:31



unsigned int lol(char *s) {

  int r=0,m=strlen(s)-1;

  for(;*s;m--)

    if(*s++-48)

      r+=1<<m;

  return r;

}

Name: Anonymous 2009-06-16 12:36

>>7
Can't this be done in the preprocessor to eliminate runtime overhead?

Better question: does any compiler precalculate static functions called with compile-time known values? I know some of them do it for some specific functions (mostly math stuff), but I wonder if it's more spread.

Name: Anonymous 2009-06-16 13:14

GNU C implements an (ex.) 0b11101101 extension if you're not looking to abide by any sort of standards.

Name: Anonymous 2009-06-16 13:24

>>9
But GNU is the standard!

Name: Anonymous 2009-06-16 18:23

>>8
run time overhead...??? you can just run it once at the start and cache it ...

Name: Anonymous 2009-06-16 18:52

>>8
Don't write proper/on topic replies AND saging

Name: Anonymous 2009-06-16 21:44

>>10
Despite the fact that your post was humerus and amusing, it actually had some valid ~~content~~ so it's EXTREMBLY RUDE OF YOU TO SAGE HOW DARE YOU

Name: Anonymous 2009-06-17 1:48

>>13
humerus
0/10

Name: Trollbot9000 2009-07-01 9:16

Values used as keys?

Input binary variables in C

1 Name: Anonymous 2009-06-16 9:42

2 Name: Anonymous 2009-06-16 9:45

3 Name: Anonymous 2009-06-16 9:45

4 Name: Anonymous 2009-06-16 9:46

5 Name: Anonymous 2009-06-16 9:48

6 Name: Anonymous 2009-06-16 9:52

7 Name: Anonymous 2009-06-16 10:31

8 Name: Anonymous 2009-06-16 12:36

9 Name: Anonymous 2009-06-16 13:14

10 Name: Anonymous 2009-06-16 13:24

11 Name: Anonymous 2009-06-16 18:23

12 Name: Anonymous 2009-06-16 18:52

13 Name: Anonymous 2009-06-16 21:44

14 Name: Anonymous 2009-06-17 1:48

15 Name: Trollbot9000 2009-07-01 9:16

Name: Anonymous 2009-06-16 9:42

Name: Anonymous 2009-06-16 9:45

Name: Anonymous 2009-06-16 9:45

Name: Anonymous 2009-06-16 9:46

Name: Anonymous 2009-06-16 9:48

Name: Anonymous 2009-06-16 9:52

Name: Anonymous 2009-06-16 10:31

Name: Anonymous 2009-06-16 12:36

Name: Anonymous 2009-06-16 13:14

Name: Anonymous 2009-06-16 13:24

Name: Anonymous 2009-06-16 18:23

Name: Anonymous 2009-06-16 18:52

Name: Anonymous 2009-06-16 21:44

Name: Anonymous 2009-06-17 1:48

Name: Trollbot9000 2009-07-01 9:16