diff options
| author | Jo-Philipp Wich <jo@mein.io> | 2023-10-09 15:21:05 +0200 |
|---|---|---|
| committer | Jo-Philipp Wich <jo@mein.io> | 2023-10-09 15:35:16 +0200 |
| commit | 7c209d736907e18ec8d79a57328c1e3bad7b2786 (patch) | |
| tree | aaf07f36605e17d8a23f7e09806716cce90ff146 /tests | |
| parent | 9f9959cb23bbec0c57e12029c2b6d10dd53b28dc (diff) | |
types: ensure double serializatiion with decimal places
The `%g` printf format used for serializing double values into strings
will not include any decimal place if the value happens to be integral,
leading to an unwanted double to integer conversion when serializing
and subsequently deserializing an integral double value as JSON.
Solve this issue by checking the serialized string result for a decimal
point or exponential notation and appending `.0` if neither is found.
Ref: #173
Suggested-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Jo-Philipp Wich <jo@mein.io>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/custom/99_bugs/43_types_json_double_format | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/custom/99_bugs/43_types_json_double_format b/tests/custom/99_bugs/43_types_json_double_format new file mode 100644 index 0000000..9b90e37 --- /dev/null +++ b/tests/custom/99_bugs/43_types_json_double_format @@ -0,0 +1,24 @@ +When formatting integral double values as JSON, ensure that at least one +decimal place is retained. + +-- Testcase -- +printf("%.J\n", [ + 1e100, + 1.23, + 4.00, + 1.0/3*3, +]); +-- End -- + +-- Args -- +-R +-- End -- + +-- Expect stdout -- +[ + 1e+100, + 1.23, + 4.0, + 1.0 +] +-- End -- |