Allman Style Review
The Allman style is named after Eric Allman. It has been incorrectly referred to as "ANSI style" supposedly for its use in the documents describing the ANSI C standard (later adopted as the ISO C international standard), though in fact those documents use K&R style. It is also sometimes known as "BSD style" since Allman wrote many of the utilities for BSD Unix
Ranked in these QuestionsQuestion Ranking
Pro Easy to find matching braces
The code is clearly set apart from the statement by lines that are almost completely whitespace and the fact that the opening braces line up in the same column as the closing braces makes it easier to match them.
Pro The block of code is disconnected from the control statement
The block of code itself is disconnected from the control statement which allows developers to comment out or remove entirely a control statement without having a large risk of encountering syntax errors because of extra or missing braces.
Con Uses more vertical space than other styles
Since each bracket is its own line, the Allman style takes more vertical space than other indent styles. This is one of the reasons that a lot of book authors do not prefer to use Allman style in their texts.