Do not use the same variable name in two scopes where one scope is contained in another. For example,
- No other variable should share the name of a global variable if the other variable is in a subscope of the global variable.
- A block should not declare a variable with the same name as a variable declared in any block that contains it.
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Related Vulnerabilities
Search for vulnerabilities resulting from the violation of this rule on the CERT website.
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Related Guidelines
CERT C++ Secure Coding Standard: DCL01-CPP. Do not reuse variable names in subscopes
Java The CERT Oracle Secure Coding Standard for Java: SCP02-J. Do not reuse names
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Wiki Markup
MISRA Rule 5.2
Bibliography
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