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Fix warnings. Better error message for missing -c argument.

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This commit is contained in:
Ulrich Drepper
2003-10-06 21:20:39 +00:00
parent b631be849d
commit b7129dfbc1
1 changed files with 7 additions and 3 deletions
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10
manual/examples/testopt.c
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@ -1,8 +1,10 @@
/*@group*/ /*@group*/
#include <unistd.h> #include <ctype.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int int
main (int argc, char **argv) main (int argc, char **argv)
{ {
int aflag = 0; int aflag = 0;
@ -28,7 +30,9 @@ main (int argc, char **argv)
cvalue = optarg; cvalue = optarg;
break; break;
case '?': case '?':
if (isprint (optopt)) if (optopt == 'c')
fprintf (stderr, "Option -%c requires an argument.\n", optopt);
else if (isprint (optopt))
fprintf (stderr, "Unknown option `-%c'.\n", optopt); fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else else
fprintf (stderr, fprintf (stderr,