From c212e68bb5f2480c68cb4b47a7b9e2ff94b840d8 Mon Sep 17 00:00:00 2001
From: Simon Rozman <simon@rozman.si>
Date: Tue, 19 Dec 2023 12:45:27 +0100
Subject: [PATCH] debug: add

Signed-off-by: Simon Rozman <simon@rozman.si>
---
 include/stdex/debug.hpp | 118 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 118 insertions(+)
 create mode 100644 include/stdex/debug.hpp

diff --git a/include/stdex/debug.hpp b/include/stdex/debug.hpp
new file mode 100644
index 000000000..8667b21dc
--- /dev/null
+++ b/include/stdex/debug.hpp
@@ -0,0 +1,118 @@
+/*
+	SPDX-License-Identifier: MIT
+	Copyright © 2023 Amebis
+*/
+
+#pragma once
+
+#include "compat.hpp"
+#include "string.hpp"
+#include <stdarg.h>
+#include <stdio.h>
+
+namespace stdex
+{
+	namespace diag {
+		/// \cond internal
+		inline void vprintf(_In_z_ _Printf_format_string_ const char* format, _In_ va_list arg)
+		{
+#if defined(NDEBUG)
+			UNREFERENCED_PARAMETER(format);
+			UNREFERENCED_PARAMETER(arg);
+#elif defined(_WIN32)
+			auto tmp = stdex::vsprintf(format, stdex::locale_default, arg);
+			OutputDebugStringA(tmp.c_str());
+#else
+			vfprintf(stdout, format, arg);
+#endif
+		}
+
+		inline void vprintf(_In_z_ _Printf_format_string_ const wchar_t* format, _In_ va_list arg)
+		{
+#if defined(NDEBUG)
+			UNREFERENCED_PARAMETER(format);
+			UNREFERENCED_PARAMETER(arg);
+#elif defined(_WIN32)
+			auto tmp = stdex::vsprintf(format, stdex::locale_default, arg);
+			OutputDebugStringW(tmp.c_str());
+#else
+			vfwprintf(stdout, format, arg);
+#endif
+		}
+		/// \endcond
+
+		///
+		/// Outputs diagnostic message
+		///
+		/// On Windows, the message is sent using `OutputDebugStringA`. On other platforms, message is printed to stdout.
+		///
+		/// \note When compiled with #define NDEBUG, no output is performed.
+		///
+		/// \param[in] format  String template using `printf()` style
+		///
+		template <class T>
+		inline void printf(_In_z_ _Printf_format_string_ const T* format, ...)
+		{
+#if defined(NDEBUG)
+			UNREFERENCED_PARAMETER(format);
+#else
+			va_list arg;
+			va_start(arg, format);
+			vprintf(format, arg);
+			va_end(arg);
+#endif
+		}
+	}
+
+	namespace err {
+		/// \cond internal
+		inline void vprintf(_In_z_ _Printf_format_string_ const char* format, _In_ va_list arg)
+		{
+#if defined(NDEBUG)
+			UNREFERENCED_PARAMETER(format);
+			UNREFERENCED_PARAMETER(arg);
+#elif defined(_WIN32)
+			auto tmp = stdex::vsprintf(format, stdex::locale_default, arg);
+			OutputDebugStringA(tmp.c_str());
+#else
+			vfprintf(stderr, format, arg);
+#endif
+		}
+
+		inline void vprintf(_In_z_ _Printf_format_string_ const wchar_t* format, _In_ va_list arg)
+		{
+#if defined(NDEBUG)
+			UNREFERENCED_PARAMETER(format);
+			UNREFERENCED_PARAMETER(arg);
+#elif defined(_WIN32)
+			auto tmp = stdex::vsprintf(format, stdex::locale_default, arg);
+			OutputDebugStringW(tmp.c_str());
+#else
+			vfwprintf(stderr, format, arg);
+#endif
+		}
+		/// \endcond
+
+		///
+		/// Outputs error message
+		///
+		/// On Windows, the message is sent using `OutputDebugStringA`. On other platforms, message is printed to stderr.
+		///
+		/// \note When compiled with #define NDEBUG, no output is performed.
+		///
+		/// \param[in] format  String template using `printf()` style
+		///
+		template <class T>
+		inline void printf(_In_z_ _Printf_format_string_ const T* format, ...)
+		{
+#if defined(NDEBUG)
+			UNREFERENCED_PARAMETER(format);
+#else
+			va_list arg;
+			va_start(arg, format);
+			vprintf(format, arg);
+			va_end(arg);
+#endif
+		}
+	}
+}