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V6005. The 'x' variable is assigned to …
Analyzer Diagnostics
General Analysis (C++)
General Analysis (C#)
General Analysis (Java)
Diagnosis of micro-optimizations (C++)
Diagnosis of 64-bit errors (Viva64, C++)
MISRA errors
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Additional information
Contents

V6005. The 'x' variable is assigned to itself.

May 4, 2018

The analyzer has detected a potential error when a variable is assigned to itself.

Consider the following example taken from a real-life application:

void change(int width, int height, int length)
{
  this.mWidth = width;
  this.mHeight = height;
  this.mLength = this.mLength;
}

From the code, it becomes obvious that a developer wanted to change the values of the object properties according to the accepted parameters in the method, but an error occurred and the property 'mLength' was assigned a value of the very same property instead of the value of the argument 'length'.

The correct version of this code should have looked as follows:

void change(int width, int height, int length)
{
  this.mWidth = width;
  this.mHeight = height;
  this.mLength = length;
}

This diagnostic is classified as:

  • CERT-MSC56-J

You can look at examples of errors detected by the V6005 diagnostic.

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