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It may be difficult to extend the language because addition of reserved words for new features might invalidate existing programs or, conversely, "overloading" of existing reserved words with new meanings can be confusing. Porting programs can be problematic because a word not reserved by one system or compiler might be reserved by another.
Name mangling is only one of several application binary interface (ABI) details that need to be decided and observed by a C++ implementation. Other ABI aspects like exception handling , virtual table layout, structure, and stack frame padding also cause differing C++ implementations to be incompatible.
The C++ standard has reserved std and std.* as module names. ... a C++ program can use to retrieve in one thread the result (value or exception) from a function that ...
The choice of a variable name should be mnemonic — that is, designed to indicate to the casual observer the intent of its use. One-character variable names should be avoided except for temporary "throwaway" variables. Common names for temporary variables are i, j, k, m, and n for integers; c, d, and e for characters. int i;
There are several techniques for avoiding name collisions, including the use of: namespaces - to qualify each name within a separate name group, so that the totally qualified names differ from each other. [1] renaming - to change the name of one item (typically the one used less often) into some other name.
In 1989, C++ 2.0 was released, followed by the updated second edition of The C++ Programming Language in 1991. [32] New features in 2.0 included multiple inheritance, abstract classes, static member functions, const member functions, and protected members. In 1990, The Annotated C++ Reference Manual was published. This work became the basis for ...
typedef is a reserved keyword in the programming languages C, C++, and Objective-C.It is used to create an additional name (alias) for another data type, but does not create a new type, [1] except in the obscure case of a qualified typedef of an array type where the typedef qualifiers are transferred to the array element type. [2]
All logical operators exist in C and C++ and can be overloaded in C++, albeit the overloading of the logical AND and logical OR is discouraged, because as overloaded operators they behave as ordinary function calls, which means that both of their operands are evaluated, so they lose their well-used and expected short-circuit evaluation property ...