enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Declaration (computer programming) - Wikipedia

    en.wikipedia.org/wiki/Declaration_(computer...

    In computer programming, a declaration is a language construct specifying identifier properties: it declares a word's (identifier's) meaning. [1] Declarations are most commonly used for functions, variables, constants, and classes, but can also be used for other entities such as enumerations and type definitions. [1]

  3. C syntax - Wikipedia

    en.wikipedia.org/wiki/C_syntax

    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. An implementation of C providing all of the standard library functions is called a hosted implementation.

  4. Compatibility of C and C++ - Wikipedia

    en.wikipedia.org/wiki/Compatibility_of_C_and_C++

    For these reasons, for C++ code to call a C function foo(), the C++ code must prototype foo() with extern "C". Likewise, for C code to call a C++ function bar(), the C++ code for bar() must be declared with extern "C". A common practice for header files to maintain both C and C++ compatibility is to make its declaration be extern "C" for the ...

  5. C (programming language) - Wikipedia

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

    long some_function (); /* This is a function declaration, so the compiler can know the name and return type of this function. */ /* int */ other_function (); /* Another function declaration. Because this is an early version of C, there is an implicit 'int' type here.

  6. Undefined variable - Wikipedia

    en.wikipedia.org/wiki/Undefined_variable

    An undefined variable in the source code of a computer program is a variable that is accessed in the code but has not been declared by that code. [1] In some programming languages, an implicit declaration is provided the first time such a variable is encountered at compile time. In other languages such a usage is considered to be sufficiently ...

  7. ANSI C - Wikipedia

    en.wikipedia.org/wiki/ANSI_C

    Improved compatibility with several C++ features, including inline functions, single-line comments with //, mixing declarations and code, and universal character names in identifiers; Removed several dangerous C89 language features such as implicit function declarations and implicit int; Three technical corrigenda were published by ISO for C99:

  8. Talk:Function prototype - Wikipedia

    en.wikipedia.org/wiki/Talk:Function_prototype

    It also explains that implicit function declarations don't exist in C99 anymore: A new feature of C99: The rule for implicit declaration of functions has been removed in C99. The effect is to guarantee the production of a diagnostic that will catch an additional category of programming errors.

  9. Function overloading - Wikipedia

    en.wikipedia.org/wiki/Function_overloading

    Two issues interact with and complicate function overloading: Name masking (due to scope) and implicit type conversion. If a function is declared in one scope, and then another function with the same name is declared in an inner scope, there are two natural possible overloading behaviors: the inner declaration masks the outer declaration ...