The snippet library.
Small, practical examples. Search by task or narrow things down below.
Merge two sorted sequences
C++: Both inputs must use the same ordering before merge is called.
C++✓ Tested
Name a value that stays fixed
C++: Use a constant declaration or the language’s constant naming convention for a fixed limit.
C++✓ Tested
Normalize a path without touching the filesystem
C++: lexically_normal removes redundant dot components using path syntax alone.
C++✓ Tested
Observe an exception from an asynchronous task
C++: Calling get rethrows an exception captured by the future.
C++✓ Tested
Observe shared ownership without extending its lifetime
C++: A weak_ptr can be locked while an owner exists and becomes expired after the last owner is released.
C++✓ Tested
Own one dynamically allocated value with unique_ptr
C++: make_unique allocates a value whose lifetime is tied to its owning smart pointer.
C++✓ Tested
Parse a complete integer without exceptions
C++: from_chars reports both an error code and the first unconsumed character.
C++✓ Tested
Parse a hexadecimal integer with from_chars
C++: An explicit radix controls digit interpretation without a locale dependency.
C++✓ Tested
Pass an argument into a worker thread
C++: Thread arguments are copied by default; std::ref explicitly passes a reference.
C++✓ Tested
Preserve equal-key order while sorting records
C++: stable_sort retains encounter order for records whose selected sort keys compare equal.
C++✓ Tested
Print a number with two decimal places
C++: Format a small decimal value consistently for display.
C++✓ Tested
Process a first-in first-out queue
C++: Queue exposes its front item separately from the operation that removes it.
C++✓ Tested