c++ help

[mzafeerk]

Can anyone tell me how this code is working ?
what is long int ?
[code]
#include<stdio.h>
int main(){

long int decimalNumber;

printf("Enter any decimal number : ");
scanf("%d",&decimalNumber);

printf("Equivalent octal number is: %o",decimalNumber);

return 0;
}

[coder777]

Read this:

http://www.cplusplus.com/reference/cstdio/scanf/?kw=scanf
http://www.cplusplus.com/reference/cstdio/printf/?kw=printf

I would think that this pretty much explains it all

[mzafeerk]

what is long int ?

[coder777]

That is a numerical type which holds a specific range of numbers.

You can use numeric_limits in order to find out what range that is:

http://www.cplusplus.com/reference/limits/numeric_limits/?kw=numeric_limits

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// numeric_limits example #include <iostream> // std::cout #include <limits> // std::numeric_limits int main () { std::cout << "Minimum value for long int: " << std::numeric_limits<long int>::min() << '\n'; std::cout << "Maximum value for long int: " << std::numeric_limits<long int>::max() << '\n'; return 0; }

Example output: Minimum value for long int: -9223372036854775808 Maximum value for long int: 9223372036854775807