From ade6d3a9ac778bfe9ff7027a38a9aec73ab6c2f3 Mon Sep 17 00:00:00 2001
From: Tim Dewhirst <tim@bugless.co.uk>
Date: Wed, 4 May 2022 07:27:16 +0200
Subject: [PATCH 1/2] remove spdlog references from README.md #20

---
 README.md | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/README.md b/README.md
index 414d684..933db85 100644
--- a/README.md
+++ b/README.md
@@ -171,7 +171,6 @@ These are captured in `vcpkg.json`:
 * [vcpkg](https://github.com/Microsoft/vcpkg)
   * catch2: unit test framework
   * libtiff: TIFF IO support
-  * spdlog: logging framework
   * benchmark: used to run performance benchmarks
   * async++ (optional): implements c++17 parallel algorithms
   * cxxopts: nice command line parsing
@@ -183,11 +182,6 @@ These are captured in `vcpkg.json`:
   * [average_subtract](examples/average_subtract/README.md): a utility to read in n
     images, find the average and write out n new images with the mean subtracted
 
-## Logging
-
-Logging is done via [spdlog](https://github.com/gabime/spdlog), to change the
-log level you can use the environmental variable `SPDLOG_LEVEL=<level>`.
-
 # TODO
 
 * build

From 87810c9d2a404f5fce97ba214ad03c5decc77ba6 Mon Sep 17 00:00:00 2001
From: Tim Dewhirst <tim@bugless.co.uk>
Date: Thu, 26 May 2022 08:31:53 +0100
Subject: [PATCH 2/2] explicitly handle case of single thread processing #26

---
 examples/process/main.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/examples/process/main.cpp b/examples/process/main.cpp
index 3d540da..e9a9137 100644
--- a/examples/process/main.cpp
+++ b/examples/process/main.cpp
@@ -183,6 +183,16 @@ int main( int argc, char* argv[] )
                      };
 
     // check execution
+    if (thread_count <= 1)
+    {
+        logger::info("processing using single thread");
+        size_t i = 0;
+        for ( const auto& ia : grid )
+        {
+            processor(i++, ia);
+        }
+    }
+    else
 #if defined(ASYNCPLUSPLUS)
     if ( execution == "async++" )
     {