of::filesystem::path with implicit narrow string conversion

addons/ofxAssimpModelLoader/src/ofxAssimpModelLoader.cpp

@@ -57,7 +57,7 @@ bool ofxAssimpModelLoader::loadModel(ofBuffer & buffer, bool optimize, const cha
 //------------------------------------------
 bool ofxAssimpModelLoader::load(const of::filesystem::path & fileName, int assimpOptimizeFlags){
 	file = ofToDataPath(fileName);
-	if (!of::filesystem::exists(file)) {
+	if (!std::filesystem::exists(file)) {
 		ofLogVerbose("ofxAssimpModelLoader") << "load(): model does not exist: " << fileName ;
 		return false;
 	}

addons/ofxSvg/src/ofxSvg.cpp

@@ -28,8 +28,8 @@ ofPath & ofxSvg::getPathAt(int n) {
 }
 
 void ofxSvg::load(const of::filesystem::path & fileName) {
-	of::filesystem::path file = ofToDataPath(fileName);
-	if (!of::filesystem::exists(file)) {
+	auto file = ofToDataPath(fileName);
+	if (!std::filesystem::exists(file)) {
 		ofLogError("ofxSVG") << "load(): path does not exist: " << file ;
 		return;
 	}

libs/openFrameworks/gl/ofShader.cpp

@@ -497,7 +497,7 @@ string ofShader::parseForIncludes(const string & source, vector<of::filesystem::
         // --------| invariant: '#pragma include' has been requested
 
 		of::filesystem::path includeFS { sourceDirectoryPath / include };
-		of::filesystem::path includeFSAbsolute { of::filesystem::absolute(includeFS) };
+		of::filesystem::path includeFSAbsolute { std::filesystem::absolute(includeFS) };
 
         if (std::find(included.begin(), included.end(), includeFSAbsolute) != included.end()) {
             ofLogVerbose("ofShader") << include << " already included";

libs/openFrameworks/graphics/ofTrueTypeFont.cpp

@@ -370,7 +370,7 @@ static bool loadFontFace(const string & _fontname, FT_Face & face,
 	auto fontname = _fontname;
 	auto filename = ofToDataPathFS(fontname);
 	int fontID = index;
-	if(!of::filesystem::exists(filename)){
+	if(!std::filesystem::exists(filename)){
 #ifdef TARGET_LINUX
 		filename = linuxFontPathByName(fontname);
 #elif defined(TARGET_OSX)
@@ -397,7 +397,7 @@ static bool loadFontFace(const string & _fontname, FT_Face & face,
 		}
 		filename = winFontPathByName(fontname);
 #endif
-		if(filename == "" ){
+		if(filename.empty() ){
 			ofLogError("ofTrueTypeFont") << "loadFontFace(): couldn't find font " << fontname;
 			return false;
 		}

libs/openFrameworks/utils/ofConstants.h

@@ -443,10 +443,7 @@ typedef TESSindex ofIndexType;
 			namespace filesystem = std::experimental::filesystem;
 		}
     #else
-		#include <filesystem>
-		namespace of {
-			namespace filesystem = std::filesystem;
-		}
+		#include "ofFilesystem.h"
     #endif
 #else //not OF_USING_STD_FS
     // No experimental or c++17 filesytem support use boost