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V527. The 'zero' value is assigned to p…
Analyzer diagnostics
General Analysis (C++)
General Analysis (C#)
General Analysis (Java)
Diagnosis of micro-optimizations (C++)
Diagnosis of 64-bit errors (Viva64, C++)
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Additional information
Contents

V527. The 'zero' value is assigned to pointer. Probably meant: *ptr = zero.

Nov 19 2010

This error occurs in two similar cases.

1) The analyzer found a potential error: a pointer to bool type is assigned false value. It is highly probable that the pointer dereferencing operation is missing. For example:

float Get(bool *retStatus)
{
  ...
  if (retStatus != nullptr)
    retStatus = false;
  ...
}

The '*' operator is missing in this code. The operation of nulling the retStatus pointer will be performed instead of status return. This is the correct code:

if (retStatus != nullptr)
  *retStatus = false;

2) The analyzer found a potential error: a pointer referring to the char/wchar_t type is assigned value '\0' or L'\0'. It is highly probable that the pointer dereferencing operation is missing. For example:

char *cp;
...
cp = '\0';

This is the correct code:

char *cp;
...
*cp = '\0';

This diagnostic is classified as:

You can look at examples of errors detected by the V527 diagnostic.

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