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Update str_chilled_p for Ruby 4.1 #219

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Merged
byroot merged 1 commit into from
Jul 10, 2026
+5 −1
Merged

Update str_chilled_p for Ruby 4.1 #219

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6 changes: 5 additions & 1 deletion ext/stringio/stringio.c
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,11 @@ STRINGIO_VERSION = "3.2.1";
static inline bool
str_chilled_p(VALUE str)
{
#if (RUBY_API_VERSION_MAJOR == 3 && RUBY_API_VERSION_MINOR >= 4) || RUBY_API_VERSION_MAJOR >= 4
#if RUBY_API_VERSION_CODE >= 40100
// Do not attempt to modify chilled strings on Ruby 4.1+
// RUBY_FL_USER2 == STR_CHILLED
return FL_TEST_RAW(str, RUBY_FL_USER2);
#elif RUBY_API_VERSION_CODE >= 30400
// Do not attempt to modify chilled strings on Ruby 3.4+
// RUBY_FL_USER2 == STR_CHILLED_LITERAL
// RUBY_FL_USER3 == STR_CHILLED_SYMBOL_TO_S
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