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check for fopen() errors for output file

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Bor Grošelj Simić 2022-01-19 15:03:59 +01:00 • committed by Quentin Carbonneaux
parent e91d121581
commit 55a1522b55
1 changed files with 6 additions and 1 deletions
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7
main.c
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@ -126,8 +126,13 @@ main(int ac, char *av[])
}
break;
case 'o':
if (strcmp(optarg, "-") != 0)
if (strcmp(optarg, "-") != 0) {
outf = fopen(optarg, "w");
if (!outf) {
fprintf(stderr, "cannot open '%s'\n", optarg);
exit(1);
}
}
break;
case 't':
for (tm=tmap;; tm++) {