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Do not use a semicolon on the same line as an if, for, or while statement because this typically indicates programmer error and can result in unexpected behavior.

Noncompliant Code Example

In this noncompliant code example, a semicolon is used on the same line as an if statement.

Code Block
bgColor#FFcccc
if (a == b); {
  /* ... */
}

Compliant Solution

It is likely, in this example, that the semicolon was accidentally inserted.

Code Block
bgColor#ccccff
if (a == b) {
  /* ... */
}

Related Guidelines

CERT C Secure Coding Standard

EXP15-C. Do not place a semicolon on the same line as an if, for, or while statement

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[ISO/IEC TR 24772:2010

http://www.aitcnet.org/isai/]

"Likely Incorrect Expression [java:KOA]"

]]></ac:plain-text-body></ac:structured-macro>

Bibliography

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="06420e09200adc44-9b7c0c51-471548a5-96a381d0-85c63c482984e7ed89d88d02"><ac:plain-text-body><![CDATA[

[java:Hatton 1995]

Section 2.7.2, "Errors of omission and addition"

]]></ac:plain-text-body></ac:structured-macro>

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