Convert integer value to hexadecimal string

Question

I have an integer returning from a function:

   int a = func();

For example, a = 236.

I need to treat this as a hexadecimal representation of an integer, and store its decimal representation in another variable, so that when printed like so:

  printf("%x", variable)

...the output should be:

What exactly are you trying to do? int a = 0x236 would seem to achieve the result you want. — Will Vousden
– Will Vousden, Commented Jan 15, 2013 at 11:14
@ring0 No I need it like 0x236. And also I am getting this value to the variable from a function. — Haris
– Haris, Commented Jan 15, 2013 at 11:17
I rewrote the question and the title, to better match the accepted answer. — unwind
– unwind, Commented Jan 15, 2013 at 11:40

SheetJS · Accepted Answer · 2013-09-21 22:19:34Z

4

All the values will be stored in binary format only. If you want to print the value in decimal formal print using %d format string or if you want to print the value in hexa decimal then print using %x.

Sameway we can assign the values in decimal and hexadecimal format also.

int a = 236;
int b = 0x236;
printf("%d", a); //it will print 236
printf("%x", a); //it will print EC
printf("%d", b); //it will print 566
printf("%x", b); //it will print 236

We can print the stored binary values in octal formal also using %o format string.

edited Sep 21, 2013 at 22:19

SheetJS

23k12 gold badges68 silver badges76 bronze badges

answered Jan 15, 2013 at 11:19

rashok

13.7k17 gold badges93 silver badges103 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

m0skit0 Over a year ago

Values are stored as binary, not hexadecimal.

rashok Over a year ago

updated the answer. Actually what I meant was, it will not store ASCII value of 2 3 and 6 in 3 bytes for the value 236

Davide Berra · Accepted Answer · 2013-01-15 11:25:51Z

3

If i've understood what you need, this little code snippet will do it

#include <stdio.h>

int main()
{
    char num[128];
    int a=236;
    int hex;

    sprintf(num, "0x%d", a);

    sscanf(num, "%x", &hex);

    printf("Hex: %x\n", hex);
}

output is

Hex: 236

answered Jan 15, 2013 at 11:25

Davide Berra

6,6382 gold badges33 silver badges55 bronze badges

Collectives™ on Stack Overflow

Convert integer value to hexadecimal string

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related