From 3686787f6751867dc2bc64c4088b56e11d06fd03 Mon Sep 17 00:00:00 2001
From: Jacob Young <jacobly0@users.noreply.github.com>
Date: Tue, 6 Dec 2022 00:37:36 -0500
Subject: [PATCH] CBE: add windows-specific reserved identifiers

---
 src/codegen/c.zig | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/codegen/c.zig b/src/codegen/c.zig
index f32d53ef0d..677a227c6c 100644
--- a/src/codegen/c.zig
+++ b/src/codegen/c.zig
@@ -120,6 +120,7 @@ pub fn typeToCIdentifier(ty: Type, mod: *Module) std.fmt.Formatter(formatTypeAsC
 }
 
 const reserved_idents = std.ComptimeStringMap(void, .{
+    // C language
     .{ "alignas", {
         @setEvalBranchQuota(4000);
     } },
@@ -215,14 +216,22 @@ const reserved_idents = std.ComptimeStringMap(void, .{
     .{ "void", {} },
     .{ "volatile", {} },
     .{ "while ", {} },
+
+    // windows.h
+    .{ "max", {} },
+    .{ "min", {} },
 });
 
 fn isReservedIdent(ident: []const u8) bool {
-    if (ident.len >= 2 and ident[0] == '_') {
+    if (ident.len >= 2 and ident[0] == '_') { // C language
         switch (ident[1]) {
             'A'...'Z', '_' => return true,
             else => return false,
         }
+    } else if (std.mem.startsWith(u8, ident, "DUMMYSTRUCTNAME") or
+        std.mem.startsWith(u8, ident, "DUMMYUNIONNAME"))
+    { // windows.h
+        return true;
     } else return reserved_idents.has(ident);
 }