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| Code Block | ||
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j = i++; func(j, i); |
Automated Detection
The tool Compass/ROSE could detect simple violations of this rule. It needs to examine each expression and make sure that no variable is modified twice in the expression. Also no variable is modified once, and read elsewhere, with the single exception that a variable may appear on both the left and right of an assignment operator.
Risk Assessment
Attempting to modify an object multiple times between sequence points may cause that object to take on an unexpected value. This can lead to unexpected program behavior.
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