Miscellaneous Operators

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Miscellaneous Operators

sizeof yields the size, in units the size of a char value, of the operand to its right. Typically, a char value is one byte in size. The operand can be a type- specifier in parentheses, as in sizeof (float) , or it can be the name of a particular variable, array, or so on, as in sizeof foo . A sizeof expression is of type size_t .

(type) is the cast operator and converts the following value to the type specified by the enclosed keyword(s). For example, (float) 9 converts the integer 9 to the floating-point number 9.0 .

, is the comma operator; it links two expressions into one and guarantees that the left most expression is evaluated first. The value of the whole expression is the value of the right-hand expression. This operator is typically used to include more information in a for loop control expression.

Example

 for (step = 2, fargo = 0; fargo < 1000; step *= 2)         fargo += step; 

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