Software static code analysis metric that counts the total number of decision statements ($D$) in a function to compute Cyclomatic Complexity using $V(G) = D + 1$ is:
AMcCabe's Cyclomatic Complexity Formula
BHalstead's Volume Metric
CHenry-Kafura Information Flow
DChidamber & Kemerer Metric
Explanation
McCabe’s formula calculates complexity based on decision predicates ($V(G) = D + 1$ or $E – N + 2P$).

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