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+ Unary Identity operator; Binary Addition operator
+exp1 Unary Identity
exp1 + exp2 Binary arithmetic addition
exp1 any real or integer expression expression
exp2 any real or integer expression
The + operator has two different meanings, depending upon its
context.
As a unary operator, + does not affect the value yielded by exp1; it
does, however, prevent the C++ compiler from arbitrarily combining
elements of exp1 with surrounding expressions. For example:
i = +(a + b) + c;
As a binary operator, + performs addition. The result depends upon
the operands and follows the usual arithmetic conversion. Examples:
i = 3223 + 88; /* i == 3311 */
x = 3.5 + 4.5; /* x == 8.0 */
See Also:
Conversions
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