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V1024. Potential use of invalid data. T…
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
AUTOSAR errors
OWASP errors (C#)
Additional information
Contents

V1024. Potential use of invalid data. The stream is checked for EOF before reading from it but is not checked after reading.

Aug 29 2018

The analyzer has detected code where invalid data may be used during a read operation.

Consider the following example:

while (!in.eof()) {
  in >> x;
  foo(x);
}

If the read operation fails, the 'x' variable will contain invalid data, while the 'foo' function will be called anyway. The solution is to either add another check before using 'x' or rewrite the loop as shown below.

Fixed code:

while (in >> x) {
  foo(x);
}

References:

This diagnostic is classified as:

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