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Unnecessary Curly Braces in C : Limiting Scope and Avoiding Clandestine Declarations
While conducting a code review, the author encountered an unusual usage of curly braces in a colleague's code. The code in question, already enclosed within curly braces associated with the constructor function, had additional curly braces surrounding a section of new code.
The primary motivation behind this practice, as expressed by the colleague, was to limit the scope of variables, preventing naming collisions and facilitating cleaner code. However, the author questions the necessity of using curly braces for this purpose, suggesting that separate methods would be a more appropriate approach.
Delving deeper, the author explores possible reasons for this behavior. They speculate that the habit may stem from C, where variable declarations were restricted until C99, leading developers to seek alternative ways to define variables within a limited scope. Additionally, the use of destructors in C allows resources to be automatically released upon exiting a scope, potentially making code more efficient.
By outlining these scenarios, the author provides a comprehensive understanding of the potential benefits and motivations for using curly braces in this manner, even if the practice may not be universally recommended.
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