flatten 20260225

tjp/core/file/read.cpp

@@ -0,0 +1,62 @@
+// TJP COPYRIGHT HEADER
+
+
+#ifdef TJP_CORE_HEADER_ONLY
+	#pragma once
+#endif
+
+#include <tjp/core/header_only/compile.h>
+
+#include "read.hpp"
+
+#include <tjp/core/exception/Exception.hpp>
+#include <cstdio>
+#include <fstream>
+
+
+namespace tjp::core::file {
+
+TJP_CORE_HEADER_ONLY_INLINE
+Optional<Contents> read(const String& path)
+{
+	std::ifstream file(path, std::ios::ate | std::ios::binary);
+	bool exists = (bool)file;
+
+	if (!exists || !file.is_open())
+		return {};
+
+	size_t fileSize = (size_t)file.tellg();
+	Contents buffer(fileSize);
+
+	file.seekg(0);
+	file.read(buffer.data(), buffer.size());
+	file.close();
+
+	return buffer;
+};
+
+TJP_CORE_HEADER_ONLY_INLINE
+Contents require_read(const String& path)
+{
+	if (auto result = read(path))
+		return *result;
+		
+	throw Exception { "failed to read file " + String(path) };
+}
+
+TJP_CORE_HEADER_ONLY_INLINE
+Optional<Contents> read(const StringView& path)
+{
+	return read(String(path));
+}
+
+TJP_CORE_HEADER_ONLY_INLINE
+Contents require_read(const StringView& path)
+{
+	return require_read(String(path));
+}
+
+
+
+
+} // namespace