Quick Answer

Incompatible pointer type assignments

Understanding the Issue

This error occurs when trying to convert between incompatible pointer types without an explicit cast. The compiler prevents potentially unsafe conversions.

The Problem

This code demonstrates the issue:

Cpp Error 
// Problem: Incompatible pointers
const char* str = "hello";
char* mutable_str = str; // Error

The Solution

Here's the corrected code:

Cpp Fixed 
// Solution 1: Explicit const_cast
char* mutable_str = const_cast<char*>(str);

// Solution 2: Create copy
char copy[100];
strcpy(copy, str);

Key Takeaways

Use explicit casts for pointer conversions when absolutely necessary.