return instead of exit in test-instr

This commit is contained in:
van Hauser 2019-10-17 09:30:50 +02:00
parent 1aec670c43
commit c75abda571

View File

@ -23,15 +23,19 @@ int main(int argc, char** argv) {
char buff[8];
char* buf = buff;
if (argc > 1)
// we support command line parameter and stdin
if (argc > 1) {
buf = argv[1];
else if (read(0, buf, sizeof(buf)) < 1) {
} else if (read(0, buf, sizeof(buf)) < 1) {
printf("Hum?\n");
exit(1);
return 1;
}
// we support three input cases (plus a 4th if stdin is used but there is no input)
if (buf[0] == '0')
printf("Looks like a zero to me!\n");
else if (buf[0] == '1')
@ -39,7 +43,6 @@ int main(int argc, char** argv) {
else
printf("Neither one or zero? How quaint!\n");
exit(0);
return 0;
}