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V561. Consider assigning value to 'foo' variable instead of declaring it anew.
The analyzer detected a potential error: there is a variable in code which is defined and initialized but not being used further. Besides, there is a variable in the exterior scope which also has the same name and type. It is highly probable that the programmer intended to use an already existing variable instead of defining a new one.
Let's examine this sample:
BOOL ret = TRUE;
if (m_hbitmap)
BOOL ret = picture.SaveToFile(fptr);The programmer defined a new variable 'ret' by accident, which causes the previous variable to always have the TRUE value regardless if the picture is saved into a file successfully or not. This is the correct code:
BOOL ret = TRUE;
if (m_hbitmap)
ret = picture.SaveToFile(fptr);This diagnostic is classified as:
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You can look at examples of errors detected by the V561 diagnostic. |
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