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Explicitly handle NaN values when converting to int

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Json objects of type double with the value NaN could cause undefined
behavior when casting double to int in `json_object_get_int`.
This commit is contained in:
Simon Resch
2024-11-14 13:47:18 +01:00
parent 565f181f65
commit 8c13801f2c
5 changed files with 51 additions and 8 deletions
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3
tests/test_cast.c
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@@ -36,6 +36,7 @@ int main(int argc, char **argv)
\"array_with_zero\": [ 0 ],\n\
\"empty_object\": {},\n\
\"nonempty_object\": { \"a\": 123 },\n\
\"nan\": NaN,\n\
}";
/* Note: 2147483649 = INT_MAX + 2 */
/* Note: 9223372036854775809 = INT64_MAX + 2 */
@@ -62,6 +63,7 @@ int main(int argc, char **argv)
getit(new_obj, "array_with_zero");
getit(new_obj, "empty_object");
getit(new_obj, "nonempty_object");
getit(new_obj, "nan");
// Now check the behaviour of the json_object_is_type() function.
printf("\n================================\n");
@@ -75,6 +77,7 @@ int main(int argc, char **argv)
checktype(new_obj, "int64_number");
checktype(new_obj, "negative_number");
checktype(new_obj, "a_null");
checktype(new_obj, "nan");
json_object_put(new_obj);