From 3b808a8930a6b8c2c3c8b1bb2476dae5261d24bd Mon Sep 17 00:00:00 2001
From: Thomas Krijnen <t.krijnen@gmail.com>
Date: Tue, 15 Sep 2026 09:13:05 +0200
Subject: [PATCH] Fix MSVC streamer template instantiation

Export the explicit full-buffer instantiation instead of the generic class. MSVC otherwise emits a default-constructor closure for the paged reader, instantiating an unsupported constructor.

Generated with the assistance of an AI coding tool.
---
 src/ifcparse/file.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ifcparse/file.h b/src/ifcparse/file.h
index f5f50b5da6..6f35630cc0 100644
--- a/src/ifcparse/file.h
+++ b/src/ifcparse/file.h
@@ -91,7 +91,7 @@ enum filetype {
 IFC_PARSE_API filetype guess_file_type(const std::string& path);
 
 template <typename Reader = file_reader<full_buffer_impl>>
-class IFC_PARSE_API instance_streamer {
+class instance_streamer {
 private:
     std::unique_ptr<Reader> owned_stream_;
     Reader* stream_;