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Computer science

Computer science or computing science is the study of the theoretical foundations of information and computation and of practical techniques for their implementation and application in computer systems...

, an operator or function is variadic if it can take a varying number of arguments; that is, if its arity

Arity

In logic, mathematics, and computer science, the arity of a function or operation is the number of arguments or operands that the function takes. The arity of a relation is the dimension of the domain in the corresponding Cartesian product...

is not fixed.

For specific articles, see:

Variadic function
Variadic function
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....
Variadic macro
Variadic macro
A variadic macro is a feature of the C preprocessor whereby a macro may be declared to accept a varying number of arguments.Variable-argument macros were introduced in the ISO/IEC 9899:1999 revision of the C programming language standard in 1999...

in the C preprocessor
C preprocessor
The C preprocessor is the preprocessor for the C and C++ computer programming languages. The preprocessor handles directives for source file inclusion , macro definitions , and conditional inclusion ....
Variadic templates
Variadic Templates
In computer programming, variadic templates are templates that take a variable number of arguments.Variadic templates are supported by the D programming language, and the newest version of C++, formalized in the C++11 standard.-C++11:...
Variadic templates in C++11

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