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  2. Control-flow graph - Wikipedia

    en.wikipedia.org/wiki/Control-flow_graph

    In computer science, a control-flow graph (CFG) is a representation, using graph notation, of all paths that might be traversed through a program during its execution. The control-flow graph was discovered by Frances E. Allen , [ 1 ] who noted that Reese T. Prosser used boolean connectivity matrices for flow analysis before.

  3. Control-flow analysis - Wikipedia

    en.wikipedia.org/wiki/Control-flow_analysis

    In computer science, control-flow analysis (CFA) is a static-code-analysis technique for determining the control flow of a program. The control flow is expressed as a control-flow graph (CFG). For both functional programming languages and object-oriented programming languages , the term CFA, and elaborations such as k -CFA, refer to specific ...

  4. Control flow - Wikipedia

    en.wikipedia.org/wiki/Control_flow

    In computer science, control flow (or flow of control) is the order in which individual statements, instructions or function calls of an imperative program are executed or evaluated. The emphasis on explicit control flow distinguishes an imperative programming language from a declarative programming language.

  5. Essential complexity - Wikipedia

    en.wikipedia.org/wiki/Essential_complexity

    Essential complexity is a numerical measure defined by Thomas J. McCabe, Sr., in his highly cited, 1976 paper better known for introducing cyclomatic complexity.McCabe defined essential complexity as the cyclomatic complexity of the reduced CFG (control-flow graph) after iteratively replacing (reducing) all structured programming control structures, i.e. those having a single entry point and a ...

  6. Cyclomatic complexity - Wikipedia

    en.wikipedia.org/wiki/Cyclomatic_complexity

    If a (connected) control-flow graph is considered a one-dimensional CW complex called , the fundamental group of will be (). The value of n + 1 {\displaystyle n+1} is the cyclomatic complexity. The fundamental group counts how many loops there are through the graph up to homotopy, aligning as expected.

  7. Switch statement - Wikipedia

    en.wikipedia.org/wiki/Switch_statement

    Switch statements function somewhat similarly to the if statement used in programming languages like C/C++, C#, Visual Basic .NET, Java and exist in most high-level imperative programming languages such as Pascal, Ada, C/C++, C#, [1]: 374–375 Visual Basic .NET, Java, [2]: 157–167 and in many other types of language, using such keywords as ...

  8. Static single-assignment form - Wikipedia

    en.wikipedia.org/wiki/Static_single-assignment_form

    An example control-flow graph, fully converted to SSA. Now, the last block can simply use y 3, and the correct value will be obtained either way. A Φ function for x is not needed: only one version of x, namely x 2 is reaching this place, so there is no problem (in other words, Φ(x 2,x 2)=x 2). Given an arbitrary control-flow graph, it can be ...

  9. File:Control flow graph of function with loop and an if ...

    en.wikipedia.org/wiki/File:Control_flow_graph_of...

    The following other wikis use this file: Usage on cs.wikipedia.org Cyklomatická složitost; Usage on es.wikipedia.org Complejidad ciclomática