Convert integer to binary c program

Eric Leschinski k 87 87 gold badges silver badges bronze badges. There is no reason for any allocation much less realloc for this operation. The size of a given type in bits is very small a constant, so just use a buffer that's the right size to begin with.

Add a comment. Active Oldest Votes. Improve this answer. Community Bot 1 1 1 silver badge. This is a lot simpler than using a string! Did you came up with it? Hugo: probably yes it was more than 5 years ago. You need to initialise bin, e.

And you should increase the size before calling strcat. And you're not freeing bin, so you have a memory leak. And you need to convert 0, 1 to '0', '1'. And you can't strcat a char to a string. Paul R Paul R k 33 33 gold badges silver badges bronze badges. You're free'ing bin before using it in atoi. Not such a good idea. You'll have to use another helper variable i. Just avoid memory heap allocations, entirely.

See my answer. Saytonum: thanks for catching that and thanks to fazo for fixing it. Andy: agreed - I was trying to fix the original implementation with as few modifications as possible rather than trying to re-implement it more efficiently.

Andy Finkenstadt Andy Finkenstadt 3, 1 1 gold badge 19 19 silver badges 25 25 bronze badges. Shouldn't it be return atoi itoa k, buffer, 2 ; instead? Those aren't part of the standard, so they're not guaranteed to exist. The working solution for Integer number to binary conversion is below. Ambrish Ambrish 31 1 1 bronze badge. Than Scanning the integer from user. Than running a while loop till entered number is greater than 0, While loop will find the binary number and store that into array named arr but that will be reverse of our required answer.

And incrementing count by 1 , as well as dividing n by 2. So, to print that binary in proper way, We are using a for loop which starts from end and goes to beginning of the array count variable is just for finding how many numbers are there in the array.

It is good way to convert integer to binary , because we are storing binary numbers into array array have no limit to store integers and printing that. Reinforcement Learning. R Programming. React Native. Python Design Patterns. Python Pillow. Python Turtle. Verbal Ability. Interview Questions. Company Questions.

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