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Set error codes for truncating int conversions

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json_object_get_int/int64/uint64() now sets errno to ERANGE when the source value
can't be represented in the target type.
This commit is contained in:
Simon Resch
2024-11-26 20:42:29 +01:00
parent 8c13801f2c
commit 0c3588330a
3 changed files with 58 additions and 16 deletions
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9
json_object.h
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@@ -743,7 +743,8 @@ JSON_EXPORT struct json_object *json_object_new_uint64(uint64_t i);
* which return INT32_MIN and the errno is set to EINVAL.
* Strings will be parsed as an integer. If no conversion exists then 0 is
* returned and errno is set to EINVAL. null is equivalent to 0 (no error values
* set)
* set).
* Sets errno to ERANGE if the value exceeds the range of int.
*
* Note that integers are stored internally as 64-bit values.
* If the value of too big or too small to fit into 32-bit, INT32_MAX or
@@ -789,7 +790,8 @@ JSON_EXPORT int json_object_int_inc(struct json_object *obj, int64_t val);
* which return INT64_MIN and the errno is set to EINVAL.
* Strings will be parsed as an int64. If no conversion exists then 0 is
* returned and errno is set to EINVAL. null is equivalent to 0 (no error values
* set)
* set).
* Sets errno to ERANGE if the value exceeds the range of int64.
*
* NOTE: Set errno to 0 directly before a call to this function to determine
* whether or not conversion was successful (it does not clear the value for
@@ -807,7 +809,8 @@ JSON_EXPORT int64_t json_object_get_int64(const struct json_object *obj);
* which return 0 and the errno is set to EINVAL.
* Strings will be parsed as an uint64. If no conversion exists then 0 is
* returned and errno is set to EINVAL. null is equivalent to 0 (no error values
* set)
* set).
* Sets errno to ERANGE if the value exceeds the range of uint64.
*
* NOTE: Set errno to 0 directly before a call to this function to determine
* whether or not conversion was successful (it does not clear the value for