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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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7
examples/img2webp.c
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@ -130,6 +130,7 @@ static int SetLoopCount(int loop_count, WebPData* const webp_data) {
//------------------------------------------------------------------------------
// Returns EXIT_SUCCESS on success, EXIT_FAILURE on failure.
int main(int argc, const char* argv[]) {
const char* output = NULL;
WebPAnimEncoder* enc = NULL;
@ -151,7 +152,7 @@ int main(int argc, const char* argv[]) {
INIT_WARGV(argc, argv);
ok = ExUtilInitCommandLineArguments(argc - 1, argv + 1, &cmd_args);
if (!ok) FREE_WARGV_AND_RETURN(1);
if (!ok) FREE_WARGV_AND_RETURN(EXIT_FAILURE);
argc = cmd_args.argc_;
argv = cmd_args.argv_;
@ -199,7 +200,7 @@ int main(int argc, const char* argv[]) {
verbose = 1;
} else if (!strcmp(argv[c], "-h") || !strcmp(argv[c], "-help")) {
Help();
FREE_WARGV_AND_RETURN(0);
FREE_WARGV_AND_RETURN(EXIT_SUCCESS);
} else if (!strcmp(argv[c], "-version")) {
const int enc_version = WebPGetEncoderVersion();
const int mux_version = WebPGetMuxVersion();
@ -335,5 +336,5 @@ int main(int argc, const char* argv[]) {
}
WebPDataClear(&webp_data);
ExUtilDeleteCommandLineArguments(&cmd_args);
FREE_WARGV_AND_RETURN(ok ? 0 : 1);
FREE_WARGV_AND_RETURN(ok ? EXIT_SUCCESS : EXIT_FAILURE);
}