C++ 20 (2a) New Features - std::format: Placeholders and Syntax

The video tutorial explains the use of placeholders in formatting strings, focusing on how curly braces denote placeholders for numbers. It discusses the limitations of standard printf and introduces the concept of numbered placeholders, which allow for swapping the sequence of numbers without changing the function's arguments. The tutorial delves into the formal syntax and format specifications, including standard and custom specifications, and provides a practical example comparing the estetic format mini language with printf. Finally, it highlights the performance improvements of the STD format over traditional methods.

Describe how the sequence of arguments affects the output of a formatted string.

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What are the implications of using special characters like hash and zero in format specifications?

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