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general: cmake: add ZINT_SANITIZEM (clang -fsanitize=memory) option

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and suppress errors in lib and backend tests (pretty sure they're
  nearly all false positives apart from maybe 2 non-initializations
  in "gif.c" (`pOut` buffer) and "raster.c" (`rotated_pixbuf`)
github: install de_DE.UTF-8 locale in ubuntu-debug also
This commit is contained in:
gitlost
2025-02-19 01:15:58 +00:00
parent 33135fc146
commit c7cf006e71
38 changed files with 177 additions and 129 deletions
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9
backend/tests/test_output.c
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@@ -68,7 +68,7 @@ static void test_check_colour_options(const testCtx *const p_ctx) {
};
const int data_size = ARRAY_SIZE(data);
int i, ret;
struct zint_symbol symbol;
struct zint_symbol symbol = {0}; /* Suppress clang -fsanitize=memory false positive */
testStart("test_check_colour_options");
@@ -121,7 +121,7 @@ static void test_colour_get_rgb(const testCtx *const p_ctx) {
for (i = 0; i < data_size; i++) {
/* Suppress clang-16 run-time exception MemorySanitizer: use-of-uninitialized-value (fixed in clang-17) */
unsigned char red = 0, green = 0, blue = 0, alpha = 0, rgb_alpha = 0;
int cyan, magenta, yellow, black;
int cyan = 0, magenta = 0, yellow = 0, black = 0; /* Suppress clang -fsanitize=memory false positive */
int have_alpha;
char rgb[64];
char cmyk[64];
@@ -179,8 +179,9 @@ static void test_colour_get_cmyk(const testCtx *const p_ctx) {
testStart("test_colour_get_cmyk");
for (i = 0; i < data_size; i++) {
int cyan, magenta, yellow, black;
unsigned char red, green, blue, alpha, rgb_alpha;
/* Suppress clang -fsanitize=memory false positives */
int cyan = 0, magenta = 0, yellow = 0, black = 0;
unsigned char red = '\0', green = '\0', blue = '\0', alpha = '\0', rgb_alpha = '\0';
char rgb[16];
if (testContinue(p_ctx, i)) continue;