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return instead of exit in test-instr

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This commit is contained in:
van Hauser
2019-10-17 09:30:50 +02:00
parent 1aec670c43
commit c75abda571
1 changed files with 8 additions and 5 deletions
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13
test-instr.c
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@ -23,15 +23,19 @@ int main(int argc, char** argv) {
char buff[8]; char buff[8];
char* buf = buff; char* buf = buff;
if (argc > 1) // we support command line parameter and stdin
if (argc > 1) {
buf = argv[1]; buf = argv[1];
else if (read(0, buf, sizeof(buf)) < 1) {
} else if (read(0, buf, sizeof(buf)) < 1) {
printf("Hum?\n"); 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') if (buf[0] == '0')
printf("Looks like a zero to me!\n"); printf("Looks like a zero to me!\n");
else if (buf[0] == '1') else if (buf[0] == '1')
@ -39,7 +43,6 @@ int main(int argc, char** argv) {
else else
printf("Neither one or zero? How quaint!\n"); printf("Neither one or zero? How quaint!\n");
exit(0); return 0;
} }