From 92084d06a5c87338cc988b5bc5868e617213e6b9 Mon Sep 17 00:00:00 2001
From: jbzdarkid <jbzdarkid@gmail.com>
Date: Sun, 24 Nov 2019 12:28:53 -0800
Subject: Try/catch, and select seed

---
 Source/MemoryException.h | 53 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Source/MemoryException.h

(limited to 'Source/MemoryException.h')

diff --git a/Source/MemoryException.h b/Source/MemoryException.h
new file mode 100644
index 0000000..ad2824d
--- /dev/null
+++ b/Source/MemoryException.h
@@ -0,0 +1,53 @@
+#pragma once
+#include <exception>
+#include <string>
+#include <vector>
+
+#define MEMORY_CATCH(expr)                 \
+try {                                      \
+    (expr);                                \
+} catch (MemoryException exc) {            \
+    MemoryException::HandleException(exc); \
+}                                          \
+do {} while (0)
+
+#define MEMORY_THROW(...) throw MemoryException(__func__, __LINE__, ##__VA_ARGS__);
+
+class MemoryException : public std::exception {
+public:
+    inline MemoryException(const char* func, int32_t line, const char* message) noexcept
+        : MemoryException(func, line, message, {}, 0) {}
+    inline MemoryException(const char* func, int32_t line, const char* message, const std::vector<int>& offsets) noexcept
+        : MemoryException(func, line, message, offsets, 0) {}
+    inline MemoryException(const char* func, int32_t line, const char* message, const std::vector<int>& offsets, size_t numItems) noexcept
+        : _func(func), _line(line), _message(message), _offsets(offsets), _numItems(numItems) {}
+    
+    ~MemoryException() = default;
+    inline const char* what() const noexcept {
+        return _message;
+    }
+    static void HandleException(const MemoryException& exc) noexcept {
+        std::string msg = "MemoryException thrown in function ";
+        msg += exc._func;
+        msg += " on line " + std::to_string(exc._line) + ":\n" + exc._message + "\nOffsets:";
+        for (int offset : exc._offsets) {
+            msg += " " + std::to_string(offset);
+        }
+        msg += "\n";
+        if (exc._numItems != 0) {
+            msg += "Num Items: " + std::to_string(exc._numItems) + "\n";
+        }
+        OutputDebugStringA(msg.c_str());
+#ifndef NDEBUG
+        MessageBoxA(NULL, msg.c_str(), "Memory Exception Thrown", MB_OK);
+#endif
+    }
+
+private:
+    const char* _func;
+    int32_t _line;
+    const char* _message;
+    const std::vector<int> _offsets;
+    size_t _numItems = 0;
+};
+
-- 
cgit 1.4.1