Syntax
#include <optional>
std::optional<int> score = 9;
if (score) { /* *score */ }Examples
C++ std::optional example
A focused example you can adapt while practising.
#include <optional>
std::optional<int> score = 9;
if (score) { /* *score */ }Best practices
- Start with the smallest working example, then adapt it to your project.
- Use the language’s standard library and idioms before introducing extra dependencies.
Runtime & versions
Compiled native applications. Feature availability depends on the language and runtime version used by your project; consult the official reference below.
ISO C++ resources