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-rw-r--r--include/ruby/internal/intern/string.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/include/ruby/internal/intern/string.h b/include/ruby/internal/intern/string.h
index 3083125e56..6827563e8d 100644
--- a/include/ruby/internal/intern/string.h
+++ b/include/ruby/internal/intern/string.h
@@ -412,7 +412,7 @@ VALUE rb_utf8_str_new_static(const char *ptr, long len);
/**
* Identical to rb_interned_str(), except it takes a Ruby's string instead of
- * C's. It can also be seen as a routine identical to to rb_str_new_shared(),
+ * C's. It can also be seen as a routine identical to rb_str_new_shared(),
* except it returns an infamous "f"string.
*
* @param[in] str An object of ::RString.
@@ -454,7 +454,7 @@ VALUE rb_interned_str(const char *ptr, long len);
RBIMPL_ATTR_NONNULL(())
/**
* Identical to rb_interned_str(), except it assumes the passed pointer is a
- * pointer to a C's string. It can also be seen as a routine identical to to
+ * pointer to a C's string. It can also be seen as a routine identical to
* rb_str_to_interned_str(), except it takes a C's string instead of Ruby's.
* Or it can also be seen as a routine identical to rb_str_new_cstr(), except
* it returns an infamous "f"string.
@@ -602,6 +602,21 @@ VALUE rb_str_dup(VALUE str);
VALUE rb_str_resurrect(VALUE str);
/**
+ * Returns whether a string is chilled or not.
+ *
+ * This function is temporary and users must check for its presence using
+ * #ifdef HAVE_RB_STR_CHILLED_P. If HAVE_RB_STR_CHILLED_P is not defined, then
+ * strings can't be chilled.
+ *
+ * @param[in] str A string.
+ * @retval 1 The string is chilled.
+ * @retval 0 Otherwise.
+ */
+bool rb_str_chilled_p(VALUE str);
+
+#define HAVE_RB_STR_CHILLED_P 1
+
+/**
* Obtains a "temporary lock" of the string. This advisory locking mechanism
* prevents other cooperating threads from tampering the receiver. The same
* thing could be done via freeze mechanism, but this one can also be unlocked