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  2. Variadic function - Wikipedia

    en.wikipedia.org/wiki/Variadic_function

    In mathematics and in computer programming, a variadic function is a function of indefinite arity, i.e., one which accepts a variable number of arguments. Support for variadic functions differs widely among programming languages. The term variadic is a neologism, dating back to 1936/1937. [1] The term was not widely used until the 1970s.

  3. C (programming language) - Wikipedia

    en.wikipedia.org/wiki/C_(programming_language)

    Functions: Function return values can be ignored, when not needed. Function and data pointers permit ad hoc run-time polymorphism. Functions may not be defined within the lexical scope of other functions. Variables may be defined within a function, with scope. A function may call itself, so recursion is supported.

  4. Range (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Range_(computer_programming)

    The range of a variable is given as the set of possible values that that variable can hold. In the case of an integer, the variable definition is restricted to whole numbers only, and the range will cover every number within its range (including the maximum and minimum).

  5. Array (data type) - Wikipedia

    en.wikipedia.org/wiki/Array_(data_type)

    Some programming languages provide operations that return the size (number of elements) of a vector, or, more generally, range of each index of an array. In C and C++ arrays do not support the size function, so programmers often have to declare separate variable to hold the size, and pass it to procedures as a separate parameter. Elements of a ...

  6. Void type - Wikipedia

    en.wikipedia.org/wiki/Void_type

    The C syntax to declare a (non-variadic) function with an as-yet-unspecified number of parameters, e.g. void f() above, was deprecated in C99. [3] In C23 (and C++), a function prototype with empty parentheses declares a function with zero parameters.

  7. C syntax - Wikipedia

    en.wikipedia.org/wiki/C_syntax

    The declarations introduce functions, variables and types. C functions are akin to the subroutines of Fortran or the procedures of Pascal. A definition is a special type of declaration. A variable definition sets aside storage and possibly initializes it, a function definition provides its body.

  8. stdarg.h - Wikipedia

    en.wikipedia.org/wiki/Stdarg.h

    stdarg.h is a header in the C standard library of the C programming language that allows functions to accept an indefinite number of arguments. [1] It provides facilities for stepping through a list of function arguments of unknown number and type. C++ provides this functionality in the header cstdarg.

  9. Return statement - Wikipedia

    en.wikipedia.org/wiki/Return_statement

    In C and C++, return exp; (where exp is an expression) is a statement that tells a function to return execution of the program to the calling function, and report the value of exp. If a function has the return type void , the return statement can be used without a value, in which case the program just breaks out of the current function and ...