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Automatically detects simple violations of this rule, although it may return some false positives. It may not catch more complex violations, such as initialization within functions taking uninitialized variables as arguments. It does catch the second noncompliant code example, and can be extended to catch the first as well

UNINIT
NO_EFFECT

Fully implemented

Can find cases of an uninitialized variable being used before it is initialized, although it cannot detect cases of uninitialized members of a struct. Because Coverity Prevent cannot discover all violations of this rule, further verification is necessary

Can detect violations of this rule but will return false positives if the initialization was done in another function

Can detect some   violations of this rule when the -Wuninitialized flag is used

Klocwork

UNINIT.HEAP.MIGHT
UNINIT.HEAP.MUST
UNINIT.STACK.ARRAY.MIGHT
UNINIT.STACK.ARRAY.MUST UNINIT.STACK.ARRAY.PARTIAL.MUST
UNINIT.STACK.MUST

LDRA tool suite

57 53 D
, 69 D, 631 S

Fully implemented