// Custom iterator: just the logic, no boilerplate struct Node { int value; Node* next; }; // Full standards-conforming iterator — only 3 methods class NodeIterator : public boost::iterator_facade<...

// String operations the standard library forgot int main() { std::string input = " Hello, Boost World! "; // Trim whitespace in place — one call instead of complex position // tracking with std::f...

// Parse a mini language — context-free grammar, not regex namespace x3 = boost::spirit::x3; // Grammar: comma-separated list of doubles in brackets // e.g., "[1.5, 2.7, 3.14]" — the equivalent regex...

Colab notebook

// small_vector: stack-allocated for small sizes, heap when it grows int main() { using boost::container::small_vector; // Up to 8 elements stored inline — zero heap allocation small_vector small =...