bitwise vs logical

Logical AND logical OR logical is not a Boolean worthwhile operation, it belongs to the discrete mathematics category.bitwise AND, bitwise OR, bitwise is not the operation of the computer bit, belongs to the computer bits operation category.Logic

Bitwise operations are operations that are performed in binary order. In system software, it is often necessary to deal with bits problems. The C language provides 6 bit operator operators. These operators can only be used for integer operands, that

1. The meaning of the return value in a call to a functionFunction F1 () {echo 1234;Return 123;//here to handle the returned value}Var_dump (F1 ());//Here is an understanding of the entire return value "function calls without a return value will not

One, Java bit operation1. Presentation method:In the Java language, the binary number is represented by a complement, the highest bit is the sign bit, the sign bit for positive numbers is 0, and the negative is 1. The complement representation needs

On the logical shift, arithmetic shift can be seen in thunder deep large part of the question. A problem.The behavior of the shift operator (>) when out of bounds was not determined when the C + + standard was seen:The behavior is undefined if the

For logical shift, arithmetic shift can be found in thunder deep large part of the question. A problem.Previously seen in the C + + standard, the shift operator (>) when out of bounds behavior is not determined:The behavior is undefined if the right

The code is as follows: /* OP symbol (PHP) Action symbol * * According to the function of the operation symbol is divided into: * One, arithmetic operator +-*/% + +-- * Two, string operators. Join operators * Third, assignment operator = + = = *=/=%=

Copy CodeThe code is as follows: /* OP symbol (PHP) Action symbol * * According to the function of the operation symbol is divided into: * One, arithmetic operator +-*/% + +-- * Two, string operators. Join operators * Third, assignment operator = +

Introduction to this bookBased on a paper published in the Bell Lab in 1985, the author has expanded his work experience to be a classic of value to C programmers. The starting point of writing this book is not to criticize the C language, but to

Priority level operator description examples of associativity 1 ()[]-.::++-- The parentheses operator that adjusts the precedenceArray Subscript access operatorTo access a member's operator by