Performance enhancements + CSVFormat interface changes (vincentlaucsb#37)

## Public API changes

* Performance increased from ~200MB/s to ~220MB/s
* Made `CSVFormat` more readable and user-friendly

## Behind the scenes

 * Resolved vincentlaucsb#34 by storing all CSV row data in contiguous memory regions
 * Modified CMake to improve developer experience
 * Simplified CSVRow constructors/definition
 * Simplified CSVReader::write_record logic
 * Various other code clean-up actions

Author: vincentlaucsb

.gitignore

@@ -1,13 +1,15 @@
+# Custom Settigns
+CMakeLists2.txt
+
 # Build
 bin/
+build/
 
 # Doxygen
 docs/html
 *.tmp
 
 # Visual Studio
-Debug/
-Release/
 .vs/
 *.pdb
 *.i*

CMakeLists.txt

@@ -1,9 +1,16 @@
 cmake_minimum_required(VERSION 3.9)
-project(csv_parser)
+project(csv)
 
-set(CMAKE_CXX_STANDARD 17)
+if(CSV_CXX_STANDARD)
+	set(CMAKE_CXX_STANDARD ${CSV_CXX_STANDARD})
+else()
+	set(CMAKE_CXX_STANDARD 17)
+endif(CSV_CXX_STANDARD)
+
+message("Building CSV library using C++${CMAKE_CXX_STANDARD}")
+add_compile_definitions(CMAKE_CXX_STANDARD=${CMAKE_CXX_STANDARD})
 
-if (MSVC)
+if(MSVC)
 	# Make Visual Studio report accurate C++ version
 	# See: https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
 	set(CMAKE_CXX_FLAGS "/EHsc /Zc:__cplusplus")
@@ -12,24 +19,33 @@ if (MSVC)
 		# /Wall emits warnings about the C++ standard library
 		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
 	endif(CMAKE_BUILD_TYPE MATCHES Debug)
-
 else()
-	set(CMAKE_CXX_FLAGS "-pthread")
-	set(CMAKE_CXX_FLAGS_RELEASE "-O3")
-	set(CMAKE_CXX_FLAGS_DEBUG "-Og -g -lgcov --coverage")
+	# Ignore Visual Studio pragma regions
+	set(CMAKE_CXX_FLAGS "-pthread -Wno-unknown-pragmas")
+	if(CMAKE_BUILD_TYPE MATCHES Debug)
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
+	else()
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Og -g")
+	endif(CMAKE_BUILD_TYPE MATCHES Debug)
 endif(MSVC)
 
+set(CSV_ROOT_DIR ${CMAKE_CURRENT_LIST_DIR})
+set(CSV_BUILD_DIR ${CMAKE_CURRENT_BINARY_DIR})
 set(CSV_INCLUDE_DIR ${CMAKE_CURRENT_LIST_DIR}/include/)
 set(CSV_SOURCE_DIR ${CSV_INCLUDE_DIR}/internal/)
 set(CSV_TEST_DIR ${CMAKE_CURRENT_LIST_DIR}/tests)
 
 include_directories(${CSV_INCLUDE_DIR})
 
+## Load developer specific CMake settings
+include(CMakeLists2.txt OPTIONAL)
+
 ## Main Library
 add_subdirectory(${CSV_SOURCE_DIR})
 
 ## Executables
 add_subdirectory("programs")
 
 ## Tests
+enable_testing()
 add_subdirectory("tests")

CMakeSettings.json

@@ -7,8 +7,8 @@
       "inheritEnvironments": [
         "msvc_x64_x64"
       ],
-      "buildRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\build\\${name}",
-      "installRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\install\\${name}",
+      "buildRoot": "${projectDir}\\build\\${name}",
+      "installRoot": "${projectDir}\\install\\${name}",
       "cmakeCommandArgs": "",
       "buildCommandArgs": "-v",
       "ctestCommandArgs": ""
@@ -20,8 +20,8 @@
       "inheritEnvironments": [
         "msvc_x64_x64"
       ],
-      "buildRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\build\\${name}",
-      "installRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\install\\${name}",
+      "buildRoot": "${projectDir}\\build\\${name}",
+      "installRoot": "{projectDir}\\install\\${name}",
       "cmakeCommandArgs": "",
       "buildCommandArgs": "-v",
       "ctestCommandArgs": ""