div_t - Linux
Overview
div_t
divides an integer dividend by an integer divisor and returns a struct
containing the quotient and the remainder. This command is commonly used in basic arithmetic operations and bitwise manipulations.
Syntax
#include <stdlib.h>
div_t div(int num, int denom);
Options/Flags
div
has no options or flags.
Examples
Calculate Quotient and Remainder Using div
:
#include <stdio.h>
#include <stdlib.h>
int main() {
int dividend = 23;
int divisor = 5;
div_t result = div(dividend, divisor);
printf("Quotient: %d\n", result.quot);
printf("Remainder: %d\n", result.rem);
return 0;
}
Output:
Quotient: 4
Remainder: 3
Using div
for Bitwise Operations:
#include <stdio.h>
#include <stdlib.h>
int main() {
int number = 15; // binary: 1111
div_t result = div(number, 2);
printf("Number: %d (binary: %s)\n", number,
result.quot % 2 == 0 ? "even" : "odd");
return 0;
}
Output:
Number: 15 (binary: odd)
Common Issues
- Division by zero: Trying to divide by zero using
div
results in undefined behavior. Use proper error handling to avoid this issue.
Integration
div
can be used in combination with other commands for advanced operations. For example, it can be used with printf
to format numeric output with specific formatting options.
Related Commands
ldiv
: Similar todiv
but works with long integers (long int
).lldiv
: Similar todiv
but works with long long integers (long long int
).