A Conversion Story: Improving from_chars and to_chars in C++17
summary
Provides tiny wrapper templates that eliminate the end pointer by taking arrays by reference or containers with contiguous storage and calling std::from_chars/std::to_chars, so callers pass a string, array, string_view or vector without computing length. Code remains one-line thin wrappers that preserve from_chars semantics (no hidden allocation, no implicit null termination), explicitly rejects bool conversions and notes a compiler bug tracked as LWG 3266. Also suggests optional preallocation to avoid repeated growth.
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chapters (13)
- 0:00Introduction
- 0:36What is a conversion
- 0:47Conversion functions
- 3:01Floating point types
- 3:16Usage
- 3:53Making it better
- 4:11What if
- 4:47Array
- 5:50Utility header
- 6:29Helpers
- 6:40Integers
- 7:19Containers
- 7:29Floating
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