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C-like languages feature two versions (pre- and post-) of each operator with slightly different semantics. In languages syntactically derived from B (including C and its various derivatives), the increment operator is written as ++ and the decrement operator is written as --. Several other languages use inc(x) and dec(x) functions.
All the operators (except typeof) listed exist in C++; the column "Included in C", states whether an operator is also present in C. Note that C does not support operator overloading. When not overloaded, for the operators && , || , and , (the comma operator ), there is a sequence point after the evaluation of the first operand.
Use of l-values as operator operands is particularly notable in unary increment and decrement operators. In C, for instance, the following statement is legal and well-defined, and depends on the fact that array indexing returns an l-value:
C uses the operator = (used in mathematics to express equality) to indicate assignment, following the precedent of Fortran and PL/I, but unlike ALGOL and its derivatives. C uses the operator == to test for equality. The similarity between the operators for assignment and equality may result in the accidental use of one in place of the other ...
Pages in category "Operators (programming)" ... Increment and decrement operators; Indexer (programming) Infix notation; L. Logical shift; M. Modulo; Move assignment ...
Increment and decrement operators; Increment operator; Indirection; Inverse function; Invoke operator (computer programming) M. Magnitude (mathematics) Multiplicative ...
C++ can't be described as a superset of C unless it contains all of the features that C contains, and unless all C programs translate correctly under a C++ environment. The modulo operator provides an example of a C program translating incorrectly under a C++ environment.
In the sample C code, the indices (i and n) should be of type unsigned rather than int — Preceding unsigned comment added by 67.183.37.183 15:48, 28 February 2020 (UTC) I'd rather they stay as int, since that's a basic type and the decrement operator can be used to allow them to go negative. + m t 21:14, 1 March 2020 (UTC)