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intcmp(1): formatting, fixes argv[0] ternary and usage function

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Emma Tebibyte 2024-07-13 17:01:53 -06:00
parent d9dd4e6057
commit 0c530dffbf
Signed by: emma
GPG Key ID: 06FA419A1698C270
1 changed files with 9 additions and 10 deletions
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19
src/intcmp.c
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@ -33,10 +33,8 @@
static char *program_name = "intcmp"; static char *program_name = "intcmp";
int usage(char *s) { int usage(char *s) {
fprintf( fprintf(stderr, "Usage: %s [-egl] integer integer...\n", s);
stderr, "Usage: %s [-egl] integer integer...\n",
s == NULL ? program_name : s
);
return EX_USAGE; return EX_USAGE;
} }
@ -45,25 +43,26 @@ int main(int argc, char *argv[]) {
size_t i; size_t i;
unsigned char mode; unsigned char mode;
int r; /* reference integer */ int r; /* reference integer */
char *s = (argv[0] == NULL ? program_name : argv[0]);
mode = 0; mode = 0;
if (argc == 0 | argc < 3) { return usage(argv[0]); } if (argc == 0 | argc < 3) { return usage(s); }
while ((c = getopt(argc, argv, "egl")) != -1) { while ((c = getopt(argc, argv, "egl")) != -1) {
switch(c){ switch (c){
case 'e': mode |= EQUAL; break; case 'e': mode |= EQUAL; break;
case 'g': mode |= GREATER; break; case 'g': mode |= GREATER; break;
case 'l': mode |= LESSER; break; case 'l': mode |= LESSER; break;
default: return usage(argv[0]); default: return usage(s);
} }
} }
if(optind + 2 /* ref cmp */ > argc){ return usage(argv[0]); } if (optind + 2 /* ref cmp */ > argc) { return usage(s); }
i = optind; i = optind;
do{ do {
r = c; r = c;
c = strtol(argv[i], &argv[i], 10); c = strtol(argv[i], &argv[i], 10);
@ -82,7 +81,7 @@ int main(int argc, char *argv[]) {
|| (!(mode & GREATER) && r > c) || (!(mode & GREATER) && r > c)
|| (!(mode & LESSER) && r < c) || (!(mode & LESSER) && r < c)
) { return 1; } ) { return 1; }
} while(++i < argc); } while (++i < argc);
return EX_OK; return EX_OK;
} }