From 2181e0fc279b396710ac9b864e566243d15eaf86 Mon Sep 17 00:00:00 2001
From: gingerBill <bill@gingerbill.org>
Date: Tue, 8 Aug 2023 15:07:00 +0100
Subject: [PATCH] Make `for init; ; {}` an error without an explicit cond or
 post

---
 core/compress/zlib/zlib.odin | 6 +++---
 src/parser.cpp               | 7 +++++++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/core/compress/zlib/zlib.odin b/core/compress/zlib/zlib.odin
index 8062c8d3a..f2a39d685 100644
--- a/core/compress/zlib/zlib.odin
+++ b/core/compress/zlib/zlib.odin
@@ -306,10 +306,10 @@ decode_huffman_slowpath :: proc(z: ^$C, t: ^Huffman_Table) -> (r: u16, err: Erro
 	code := u16(compress.peek_bits_lsb(z,16))
 
 	k := int(z_bit_reverse(code, 16))
-	s: u8
 
-	#no_bounds_check for s = HUFFMAN_FAST_BITS+1; ; {
-		if k < t.maxcode[s] {
+	s: u8 = HUFFMAN_FAST_BITS+1
+	for {
+		#no_bounds_check if k < t.maxcode[s] {
 			break
 		}
 		s += 1
diff --git a/src/parser.cpp b/src/parser.cpp
index a2de85d84..695f5c792 100644
--- a/src/parser.cpp
+++ b/src/parser.cpp
@@ -4339,6 +4339,13 @@ gb_internal Ast *parse_for_stmt(AstFile *f) {
 	}
 
 	cond = convert_stmt_to_expr(f, cond, str_lit("boolean expression"));
+	if (init != nullptr &&
+	    cond == nullptr &&
+	    post == nullptr) {
+		syntax_error(init, "'for init; ; {' without an explicit condition nor post statement is not allowed, please prefer something like 'for init; true; /**/{'");
+	}
+
+
 	return ast_for_stmt(f, token, init, cond, post, body);
 }