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Code Lines 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.

Code Lines

API ID: CountLineCode
Also Known As: Lines of Code (LOC), Source Lines of Code (SLOC)
Languages: Ada, Assembly, Basic, C#, C++, Fortran, Java, Jovial, Pascal, Python, Rust, VHDL, Web
Targets: Architectures, Classes, Files, Functions, Modules, Packages, Project, Subprograms

Number of lines containing source code.

A line only counts if it is active. Note that a line can contain source and a comment and thus count towards multiple metrics. For classes this is the sum of CountLineCode for the member functions of the class.

For example:


void SayHello::printHello() {
  switch (i) {
    case 0:
      cout << "Hello World" << endl;
    case 1:
      cout << "HELLO WORLD!" << endl;
    default: // a comment here
      for (int m = 0; m < j; m++);
      cout << "hello world" << endl;
  }
#ifdef A_VERY_NICE_VARIABLE

  cout << "Inactive Line" << endl; // Inactive
#endif

}

Lines 11-20 and line 26 (12 lines) all contain code. The cout << "Inactive Line" statement inside the #ifdef A_VERY_NICE_VARIABLE block also looks like code, but since A_VERY_NICE_VARIABLE isn't defined it's inactive and doesn't count, leaving CountLineCode = 11.

To also count code lines inside inactive regions, use Code Lines (Includes Inactive). For the per-language breakdown of code lines in web files, see Code Lines (JavaScript) and Code Lines (PHP).

Also known as Lines of Code (LOC); Source Lines of Code (SLOC).


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