Results for “values”
Small, practical examples. Search by task or narrow things down below.
Propagate a parsing error with question mark
Propagate a parsing error with question mark in a complete Rust program using the standard library.
Rust✓ Tested
Provide a default for a missing value
Provide a default for a missing value in a complete Rust program using the standard library.
Rust✓ Tested
Read a big-endian integer from bytes
Java: Set a byte order explicitly when handling a binary protocol.
Java✓ Tested
Read a variant only when it holds the expected type
C++: get_if returns a null pointer rather than throwing for another active alternative.
C++✓ Tested
Remove a map entry and inspect the number removed
C++: erase by key reports whether a unique-key map contained the entry.
C++✓ Tested
Represent an absent result with optional
C++: value_or supplies a default without requiring a sentinel inside the value domain.
C++✓ Tested
Require every bit in a mask
Arduino / C: Masking followed by equality tests whether all required flags are set.
Arduino / C✓ Tested
Run cleanup through a scoped destructor
C++: A stack object’s destructor runs when its scope exits, including normal exception unwinding.
C++✓ Tested
Share ownership with a counted smart pointer
C++: Copies of shared_ptr keep the owned value alive until the last owner is released.
C++✓ Tested
Stop collecting when parsing fails
Stop collecting when parsing fails in a complete Rust program using the standard library.
Rust✓ Tested
Store a reference in a standard container
C++: reference_wrapper preserves reference semantics while behaving like a copyable container element.
C++✓ Tested
Store and inspect a fixed set of bits
C++: bitset offers named operations and a readable binary representation.
C++✓ Tested