C library macro - EDOM
C standard library - <errno.h>
description
Occurrence C library macroEDOM represents a domain error, it exceeds the input parameter mathematical functions defined domains, errno is set to EDOM.
statement
Here is EDOM macro statement.
#define EDOM some_value
parameter
- NA
return value
- NA
Examples
The following example demonstrates EDOM macro usage.
#include <stdio.h>
#include <errno.h>
#include <math.h>
int main()
{
double val;
errno = 0;
val = sqrt(-10);
if(errno == EDOM)
{
printf("Invalid value \n");
}
else
{
printf("Valid value\n");
}
errno = 0;
val = sqrt(10);
if(errno == EDOM)
{
printf("Invalid value\n");
}
else
{
printf("Valid value\n");
}
return(0);
}
Let's compile and run the above program, which will result in the following:
Invalid value Valid value