Use Dragonbox as replacement for missing fp std::to_chars, prevents…

… precision issues (#12)

* add macos tests

* use dragonbox as a replacement for missing std::to_chars

* increase version

.github/workflows/build.yml

@@ -2,18 +2,29 @@ name: Build and test
 
 on:
   push:
-    branches: [ "main" ]
+    branches: "**"
   pull_request:
-    branches: [ "main" ]
+    branches: "**"
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+        - name: Ubuntu
+          os: ubuntu-latest
+
+        - name: macOS
+          os: macos-latest
+
+    runs-on: ${{ matrix.config.os }}
 
     steps:
     - uses: actions/checkout@v3
 
-    - run: sudo apt install ninja-build
+    # - run: sudo apt install ninja-build
+    - uses: seanmiddleditch/gha-setup-ninja@v4
 
     - name: Configure CMake
       run: cmake -B ${{github.workspace}}/build -G Ninja

CMakeLists.txt

@@ -1,6 +1,11 @@
 cmake_minimum_required(VERSION 3.21)
 
-project(mat-json VERSION 2.0.0)
+project(mat-json VERSION 2.1.0)
+
+set(SOURCE_FILES
+    src/json.cpp
+    src/external/dragonbox.cpp
+)
 
 # This option is only useful for Geode itself
 if (DEFINED MAT_JSON_AS_INTERFACE AND MAT_JSON_AS_INTERFACE)
@@ -9,9 +14,9 @@ if (DEFINED MAT_JSON_AS_INTERFACE AND MAT_JSON_AS_INTERFACE)
 
     add_library(mat-json-impl INTERFACE)
     target_link_libraries(mat-json-impl INTERFACE mat-json)
-    target_sources(mat-json-impl INTERFACE ${CMAKE_CURRENT_SOURCE_DIR}/src/json.cpp)
+    target_sources(mat-json-impl INTERFACE ${SOURCE_FILES})
 else()
-    add_library(mat-json src/json.cpp)
+    add_library(mat-json ${SOURCE_FILES})
 
     target_compile_features(mat-json PUBLIC cxx_std_20)