string.c: rb_fstring_cstr

* string.c (rb_fstring_cstr): new function to make a fstring from
  a string literal.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51009 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/string.c b/string.c
index 4d2944ccd4..1a962153a1 100644
--- a/string.c
+++ b/string.c
@@ -46,6 +46,7 @@
 #undef rb_str_buf_cat2
 #undef rb_str_cat2
 #undef rb_str_cat_cstr
+#undef rb_fstring_cstr
 
 static VALUE rb_str_clear(VALUE str);
 
@@ -303,6 +304,12 @@ rb_fstring_new(const char *ptr, long len)
     return rb_fstring(setup_fake_str(&fake_str, ptr, len, ENCINDEX_US_ASCII));
 }
 
+VALUE
+rb_fstring_cstr(const char *ptr)
+{
+    return rb_fstring_new(ptr, strlen(ptr));
+}
+
 static int
 fstring_set_class_i(st_data_t key, st_data_t val, st_data_t arg)
 {