intss(3C)
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intss function
Determine if the standard input file is a terminal.
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Calling Sequence
int intss(), isterm;
isterm = intss();
Description
Use the intss function to determine if the standard input file is
a terminal.
Returns
The intss function returns 1 if the standard input file is a
terminal.
Related Functions
See also the intso function.
Example
/* Program test for the intss() macro */
#include <stdio.h>
int isterm, intss();
main() {
printf("Is standard input a terminal?\n");
printf("%s.\n", (isterm = intss()) == 1 ? "Yes" : "No");
}
A call to the program test generates the output
Is standard input a terminal?
Yes.
DG/UX 4.00 Page 1
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