Size of Operator in C language
The size of the sizeof
operator in the C language is determined at compile time. It is used to calculate the size, in bytes, of a data type or a variable. The result of the sizeof
operator is an unsigned integer value.
Here is an example of how the sizeof
operator is used:
#include <stdio.h>
int main() {
int num = 10;
printf("The size of an integer is: %zu bytes\n", sizeof(int));
printf("The size of the variable 'num' is: %zu bytes\n", sizeof(num));
return 0;
}
Output:
The size of an integer is: 4 bytes
The size of the variable 'num' is: 4 bytes
In this example, the sizeof
operator is used to determine the size of the int
data type and the variable num
. The %zu
format specifier is used to print the size as an unsigned integer.
Please note that the size of a data type may vary depending on the compiler and the platform being used. The example above shows the size of an int
as 4 bytes, but it may be different on different systems.
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