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The C++26 standard introduces several improvements to the std::format library, including direct pointer formatting, path formatting, constexpr support, and a new empty line overload for std::println.
A study demonstrates that simply changing the formatting (prose vs bullet points) of a persona prompt dramatically flips an LLM's behavior in a Prisoner's Dilemma, from 96% cooperation to 20%, illustrating extreme sensitivity to format despite identical content (p < 0.001).
The article argues that code and comments should be wrapped to different columns, with comment width relative to the comment start, and discusses how current editor tools don't properly support relative wrapping.