hyz0906 Namespace Skill
Fixes C++ namespace-related compilation errors.
Detection Patterns
'X' is not a member of 'std''X' is not a member of 'namespace''X' was not declared in this scope(when namespace issue)
Strategy
- Identify Symbol: Extract the symbol and expected namespace.
- Add Qualifier: Prefix the symbol with namespace, or add
using.
Instructions
Step 1: Parse Error
From: 'cout' is not a member of 'std'
Symbol: cout, Namespace: std
Step 2: Common Fixes
Add namespace prefix:
// Before
cout << "Hello"; // ERROR
// After
std::cout << "Hello";
Add using declaration:
// At top of file or function
using std::cout;
// Or
using namespace std; // Less recommended
Common std:: Symbols
| Symbol | Namespace |
|---|---|
cout, cin, endl |
std:: |
vector, map, set |
std:: |
string |
std:: |
unique_ptr, shared_ptr |
std:: |
chrono::* |
std::chrono:: |