hyz0906 Type Conversion Skill
Fixes compilation errors related to incompatible type assignments or conversions.
Detection Patterns
cannot convert 'X' to 'Y'invalid conversion from 'X' to 'Y'no viable conversionincompatible types
Strategy
- Identify Types: Extract source and target types from error.
- Determine Conversion: Choose appropriate cast or method.
- Apply Fix: Add cast or conversion call.
Instructions
Step 1: Parse the Error
Extract:
- Source type (what you have)
- Target type (what is expected)
- Location of the conversion
Step 2: Common Conversions
| From | To | Fix |
|---|---|---|
std::string |
const char* |
.c_str() |
const char* |
std::string |
Constructor or assignment |
int |
enum |
static_cast<EnumType>(val) |
void* |
T* |
static_cast<T*>(ptr) |
Base* |
Derived* |
dynamic_cast<Derived*>(base) |
int64_t |
int |
static_cast<int>(val) (with care) |
Step 3: Apply Fix
Example: string to const char*
// Before (error)
void log(const char* msg);
std::string message = "Hello";
log(message); // ERROR
// After
log(message.c_str());
Example: enum cast
// Before
int value = 5;
MyEnum e = value; // ERROR
// After
MyEnum e = static_cast<MyEnum>(value);
Step 4: Verify
Ensure semantic correctness, not just compilation success.