fn-wrapper: fix dates, add comment about gcc extenstion

1 files changed, 8 insertions, 4 deletions

diff --git a/content/2024-04-24-fn-wrapper-macro-magic/index.md b/content/2024-04-24-fn-wrapper-macro-magic/index.md
index fe45614..b966a1a 100644
--- a/content/2024-04-24-fn-wrapper-macro-magic/index.md
+++ b/content/2024-04-24-fn-wrapper-macro-magic/index.md
@@ -51,7 +51,7 @@ chance to reason about what the code is doing. The draw back is that bodies
 have to be repeated for each wrapper.
 
 ```cpp
-{{ include(path="content/2024-04-22-fn-wrapper-macro-magic/wrap-v1.cc") }}
+{{ include(path="content/2024-04-24-fn-wrapper-macro-magic/wrap-v1.cc") }}
 ```
 
 > In the code examples, I use the `MOCK_WRAPPER_IMPL`<sup><a href="#sup-1">1</a></sup>
@@ -70,7 +70,7 @@ reason about the code. Additionally, the arguments must be specified twice,
 when defining a wrapper.
 
 ```cpp
-{{ include(path="content/2024-04-22-fn-wrapper-macro-magic/wrap-v2.cc") }}
+{{ include(path="content/2024-04-24-fn-wrapper-macro-magic/wrap-v2.cc") }}
 ```
 
 ## Version 3
@@ -84,7 +84,7 @@ The example only supports function with **one** or **two** arguments, but the
 code can easily be extended.
 
 ```cpp
-{{ include(path="content/2024-04-22-fn-wrapper-macro-magic/wrap-v3.cc") }}
+{{ include(path="content/2024-04-24-fn-wrapper-macro-magic/wrap-v3.cc") }}
 ```
 
 ## Version 4
@@ -98,8 +98,12 @@ variadic argument list [__VA_ARGS__][va-args] is presented in
 [__VA_NARG__][va-narg].
 
 ```cpp, hide_lines=41-100
-{{ include(path="content/2024-04-22-fn-wrapper-macro-magic/wrap-v4.cc") }}
+{{ include(path="content/2024-04-24-fn-wrapper-macro-magic/wrap-v4.cc") }}
 ```
+> The implementation to handle empty arguments **CPP_ARGC() == 0** uses a gcc
+> extension for the **##** operator. This is also supported by clang, but not
+> by msvc. Maybe I will come back in the future to update this, if I have the
+> need.
 
 ## Appendix: Listify codegen data