Allow empty lower bound in /{,n}/

This change has been planned for a long time, bringing Perl into parity
with similar languages, but it took many deprecation cycles to be able
to reach the point where it could safely go in.

This fixes GH #18264

1 files changed, 0 insertions, 5 deletions

diff --git a/proto.h b/proto.h
index aa156b4cad..7b935c2a9a 100644
--- a/proto.h
+++ b/proto.h
@@ -5817,11 +5817,6 @@ STATIC SV*	S_make_exactf_invlist(pTHX_ RExC_state_t *pRExC_state, regnode *node)
 STATIC I32	S_make_trie(pTHX_ RExC_state_t *pRExC_state, regnode *startbranch, regnode *first, regnode *last, regnode *tail, U32 word_count, U32 flags, U32 depth);
 #define PERL_ARGS_ASSERT_MAKE_TRIE	\
 	assert(pRExC_state); assert(startbranch); assert(first); assert(last); assert(tail)
-STATIC bool	S_new_regcurly(const char *s, const char *e)
-			__attribute__warn_unused_result__;
-#define PERL_ARGS_ASSERT_NEW_REGCURLY	\
-	assert(s); assert(e)
-
 STATIC void	S_nextchar(pTHX_ RExC_state_t *pRExC_state);
 #define PERL_ARGS_ASSERT_NEXTCHAR	\
 	assert(pRExC_state)