feature: add error conversion functions for DRANG error codes

Source/DrangPlatform/Include/drang/error.h

@@ -21,6 +21,7 @@ DRANG_PLATFORM_API const char *drang_error_str(int err);
 #define DRANG_EPERM (-8)     // Operation not permitted
 #define DRANG_ETIMEDOUT (-9) // Connection timed out
 #define DRANG_EBUSY (-10)    // Device or resource busy
+#define DRANG_EPLATFORM (-1000) // An unknown platform-specific error occurred
 
 /**
  * @brief Begins a try-catch block for error handling.

Source/DrangPlatform/Source/errno_convert.c

@@ -0,0 +1,56 @@
+#include "errno_convert.h"
+
+#include "drang/error.h"
+#include <errno.h>
+
+int drang_error_to_errno(int error)
+{
+    switch (error) {
+    case DRANG_EOK:
+        return 0;
+    case DRANG_EAGAIN:
+        return EAGAIN;
+    case DRANG_ENOMEM:
+        return ENOMEM;
+    case DRANG_EINVAL:
+        return EINVAL;
+    case DRANG_ENOENT:
+        return ENOENT;
+    case DRANG_EDEADLK:
+        return EDEADLK;
+    case DRANG_EPERM:
+        return EPERM;
+    case DRANG_ETIMEDOUT:
+        return ETIMEDOUT;
+    case DRANG_EBUSY:
+        return EBUSY;
+    case DRANG_EPLATFORM:
+    default:
+        return EIO; // Generic I/O error for unknown platform errors
+    }
+}
+int drang_errno_to_error(const int errnum)
+{
+    switch (errnum) {
+    case 0:
+        return DRANG_EOK;
+    case EAGAIN:
+        return DRANG_EAGAIN;
+    case ENOMEM:
+        return DRANG_ENOMEM;
+    case EINVAL:
+        return DRANG_EINVAL;
+    case ENOENT:
+        return DRANG_ENOENT;
+    case EDEADLK:
+        return DRANG_EDEADLK;
+    case EPERM:
+        return DRANG_EPERM;
+    case ETIMEDOUT:
+        return DRANG_ETIMEDOUT;
+    case EBUSY:
+        return DRANG_EBUSY;
+    default:
+        return DRANG_EPLATFORM;
+    }
+}

Source/DrangPlatform/Source/errno_convert.h

@@ -0,0 +1,11 @@
+#pragma once
+#include <drang/platform.h>
+
+
+DRANG_BEGIN_DECLS
+
+
+int drang_error_to_errno(int error);
+int drang_errno_to_error(int errnum);
+
+DRANG_END_DECLS