In C, may a function legally contain multiple return statements, or should there never be more than one?

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:

• Standard ISO C.
• No special compiler restrictions or static analysis rules are assumed.

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:

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:

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.