Difficulty: Easy
Correct Answer: Yes, multiple return statements are allowed
Explanation:
Introduction / Context:Programmers often debate style guidelines such as “one exit point per function.” While single-exit can help readability in some cases, the C language itself does not forbid multiple return statements. This question clarifies legality versus style preference.
Given Data / Assumptions:
Concept / Approach:C syntax and semantics place no restriction on the count of return statements. A function can legally return early on errors or guard conditions. Code clarity and resource management patterns (for example, goto cleanup) may influence style, but the language permits multiple returns.
Step-by-Step Solution:
Identify the claim: “Two return statements should never occur.”Consult the language: multiple return statements are valid.Note: style guides may recommend a single exit, but that is not a language rule.Verification / Alternative check:Write a small example with early returns on invalid parameters; it compiles and runs correctly across compilers.
Why Other Options Are Wrong:
No, exactly one return: Incorrect; the standard allows multiple.Only in C++: C also allows multiple returns.Only in main: main is not special in this regard.Dependent on optimization: Language legality is independent of optimization level.Common Pitfalls:Confusing team style rules with compiler-enforced language rules; conflating early-return patterns with resource leaks instead of using cleanup sections.
Final Answer:Yes, multiple return statements are allowed.
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