Unique Globals Used

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Unique Globals Used is one of the source-code metrics Understand computes across 17+ languages — browse them in the GUI, export and track them, or script them with the Python API.

Metrics overview

Unique Globals Used

API ID: CountGlobalsUsedUnique
Languages: C, C++, Pascal, Python, Web
Targets: Functions

The number of unique global objects used by this function

Example:

    int my_global = 10;
    void uses(int x)
    {
      int y, z;
      x = 1;           //     Parameters do not count
      x = 2;           //     Parameters do not count
      y = 1;           //     Locals do not count
      y = 2;           //     Locals do not count
      my_global = 1;   // + 1 Globals count
      my_global = 2;   //     Duplicates do not count
    }                  // CountGlobalsUsedUnique = 1

Compare to CountGlobalsUsed which counts all uses to global objects by this function.