- Refactored fennec::format to use to_chars for ints. floats TODO but will also use to_chars.

source/format/charconv.cpp

@@ -0,0 +1,147 @@
+// =====================================================================================================================
+//  fennec, a free and open source game engine
+//  Copyright © 2025  Medusa Slockbower
+//
+//  This program is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program is distributed in the hope that it will be useful,
+//  but WITHOUT ANY WARRANTY; without even the implied warranty of
+//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//  GNU General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+// =====================================================================================================================
+
+///
+/// \file charconv.h
+/// \brief
+///
+///
+/// \details
+/// \author Medusa Slockbower
+///
+/// \copyright Copyright © 2025 Medusa Slockbower ([GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html))
+///
+///
+
+#define __cpp_lib_to_chars
+#include <charconv>
+#include <system_error>
+#include <fennec/format/charconv.h>
+#include <fennec/lang/assert.h>
+
+namespace fennec
+{
+
+char* to_chars(char* first, char* last, char x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+char* to_chars(char* first, char* last, signed char x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+char* to_chars(char* first, char* last, unsigned char x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last,   signed short x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+char* to_chars(char* first, char* last, unsigned short x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last,   signed int x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+char* to_chars(char* first, char* last, unsigned int x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last,   signed long x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+char* to_chars(char* first, char* last, unsigned long x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last,   signed long long x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+char* to_chars(char* first, char* last, unsigned long long x, int base) {
+	auto res = std::to_chars(first, last, x, base);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+
+std::chars_format ctofmt(char c) {
+	switch (c) {
+		default:            return std::chars_format::general;
+		case 'a': case 'A': return std::chars_format::hex;
+		case 'f': case 'F': return std::chars_format::fixed;
+		case 'e': case 'E': return std::chars_format::scientific;
+	}
+}
+
+char* to_chars(char* first, char* last, float x) {
+	auto res = std::to_chars(first, last, x);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last, float x, char fmt) {
+	auto res = std::to_chars(first, last, x, ctofmt(fmt));
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last, float x, char fmt, int precision) {
+	auto res = std::to_chars(first, last, x, ctofmt(fmt), precision);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+
+char* to_chars(char* first, char* last, double x) {
+	auto res = std::to_chars(first, last, x);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last, double x, char fmt) {
+	auto res = std::to_chars(first, last, x, ctofmt(fmt));
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+char* to_chars(char* first, char* last, double x, char fmt, int precision) {
+	auto res = std::to_chars(first, last, x, ctofmt(fmt), precision);
+	assertf(res.ec == std::errc(), std::make_error_code(res.ec).message().c_str());
+	return res.ptr;
+}
+
+}