Hi, Sergey!
Thanks for the patch!
LGTM, except for the single nit regarding the commit title.
I believe, it should be the `string.format` instead of `string.char`.
--
Best regards,
Maxim Kokryashkin
 
 
> 
>>This patch adds the test for the commit
>>430d9f8f7ebb779948dbd43944b876b1a3f58551 ("Fix string.format("%c",
>>0)."). Although, the issue affects 2.0 branch only, there is no need to
>>fix it. Nevertheless, the test is required to avoid regressions in the
>>future.
>>
>>Part of tarantool/tarantool#8069
>>---
>>
>>PR:  https://github.com/tarantool/tarantool/pull/8189
>>Branch:  https://github.com/tarantool/luajit/tree/skaplun/lj-378-string-format-c-null-char-full-ci
>>Issues:
>>*  https://github.com/tarantool/tarantool/issues/8069
>>*  https://github.com/LuaJIT/LuaJIT/issues/378
>>
>> .../lj-378-string-format-c-null-char.test.lua | 11 +++++++++++
>> 1 file changed, 11 insertions(+)
>> create mode 100644 test/tarantool-tests/lj-378-string-format-c-null-char.test.lua
>>
>>diff --git a/test/tarantool-tests/lj-378-string-format-c-null-char.test.lua b/test/tarantool-tests/lj-378-string-format-c-null-char.test.lua
>>new file mode 100644
>>index 00000000..15cefadf
>>--- /dev/null
>>+++ b/test/tarantool-tests/lj-378-string-format-c-null-char.test.lua
>>@@ -0,0 +1,11 @@
>>+local tap = require('tap')
>>+
>>+local test = tap.test('lj-378-string-format-c-null-char')
>>+test:plan(1)
>>+
>>+-- Test file to check that there is no regression in
>>+-- `string.format('%c', 0)` behaviour.
>>+-- See also  https://github.com/LuaJIT/LuaJIT/issues/378 .
>>+
>>+test:is(string.format('%c', 0), '\0', 'string.format %c on null char')
>>+os.exit(test:check() and 0 or 1)
>>--
>>2.34.1
>