shithub: rgbds

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Print error if reverse() fails to open a file

--- a/src/gfx/reverse.cpp

+++ b/src/gfx/reverse.cpp

@@ -28,7 +28,9 @@

 static DefaultInitVec<uint8_t> readInto(std::string path) {

 	std::filebuf file;

-	file.open(path, std::ios::in | std::ios::binary);

+	if (!file.open(path, std::ios::in | std::ios::binary)) {

+		fatal("Failed to open \"%s\": %s", path.c_str(), strerror(errno));

+	}

 	DefaultInitVec<uint8_t> data(128 * 16); // Begin with some room pre-allocated

 	size_t curSize = 0;

@@ -117,6 +119,7 @@

 	if (!options.tilemap.empty()) {

 		tilemap = readInto(options.tilemap);

 		nbTileInstances = tilemap->size();

+		options.verbosePrint(Options::VERB_INTERM, "Read %zu tilemap entries.\n", nbTileInstances);

 	}

 	if (nbTileInstances > options.maxNbTiles[0] + options.maxNbTiles[1]) {