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normalize example exit status

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Use EXIT_SUCCESS / EXIT_FAILURE in most cases as more granularity isn't
useful. For anim_diff, use 0 (success), 1 (image difference) and 2
(error) to align it with other diff utilities (diff, etc.).

Bug: webp:637
Change-Id: I52925de8622a5a4d2141883279d69a1d95ef9b12
This commit is contained in:
James Zern
2024-04-30 18:18:23 -07:00
parent edc289092a
commit a67ff735a2
19 changed files with 139 additions and 72 deletions
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15
examples/anim_diff.c
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@ -16,7 +16,7 @@
#include <assert.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h> // for 'strtod'.
#include <stdlib.h>
#include <string.h> // for 'strcmp'.
#include "./anim_util.h"
@ -206,8 +206,9 @@ static void Help(void) {
printf(" -version ............ print version number and exit\n");
}
// Returns 0 on success, 1 if animation files differ, and 2 for any error.
int main(int argc, const char* argv[]) {
int return_code = -1;
int return_code = 2;
int dump_frames = 0;
const char* dump_folder = NULL;
double min_psnr = 0.;
@ -269,18 +270,18 @@ int main(int argc, const char* argv[]) {
}
if (parse_error) {
Help();
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(return_code);
}
}
if (argc < 3) {
Help();
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(return_code);
}
if (!got_input2) {
Help();
FREE_WARGV_AND_RETURN(-1);
FREE_WARGV_AND_RETURN(return_code);
}
if (dump_frames) {
@ -293,7 +294,7 @@ int main(int argc, const char* argv[]) {
if (!ReadAnimatedImage(files[i], &images[i], dump_frames, dump_folder)) {
WFPRINTF(stderr, "Error decoding file: %s\n Aborting.\n",
(const W_CHAR*)files[i]);
return_code = -2;
return_code = 2;
goto End;
} else {
MinimizeAnimationFrames(&images[i], max_diff);
@ -304,7 +305,7 @@ int main(int argc, const char* argv[]) {
premultiply, min_psnr)) {
WFPRINTF(stderr, "\nFiles %s and %s differ.\n", (const W_CHAR*)files[0],
(const W_CHAR*)files[1]);
return_code = -3;
return_code = 1;
} else {
WPRINTF("\nFiles %s and %s are identical.\n", (const W_CHAR*)files[0],
(const W_CHAR*)files[1]);