delete `$` sign from C identifiers

They lack portability. See also
https://travis-ci.org/shyouhei/ruby/jobs/577164015

1 files changed, 3 insertions, 3 deletions

diff --git a/io.c b/io.c
index 2f9df89d6a..e0b81fcc3a 100644
--- a/io.c
+++ b/io.c
@@ -12987,13 +12987,13 @@ rb_readwrite_syserr_fail(enum rb_io_wait_readwrite writable, int n, const char *
 }
 
 static VALUE
-get_$LAST_READ_LINE(ID _x, VALUE *_y)
+get_LAST_READ_LINE(ID _x, VALUE *_y)
 {
     return rb_lastline_get();
 }
 
 static void
-set_$LAST_READ_LINE(VALUE val, ID _x, VALUE *_y)
+set_LAST_READ_LINE(VALUE val, ID _x, VALUE *_y)
 {
     rb_lastline_set(val);
 }
@@ -13271,7 +13271,7 @@ Init_IO(void)
     rb_define_hooked_variable("$-0", &rb_rs, 0, rb_str_setter);
     rb_define_hooked_variable("$\\", &rb_output_rs, 0, rb_str_setter);
 
-    rb_define_virtual_variable("$_", get_$LAST_READ_LINE, set_$LAST_READ_LINE);
+    rb_define_virtual_variable("$_", get_LAST_READ_LINE, set_LAST_READ_LINE);
 
     rb_define_method(rb_cIO, "initialize_copy", rb_io_init_copy, 1);
     rb_define_method(rb_cIO, "reopen", rb_io_reopen, -1);