sizeof

[Int occupies 4 bytes, and short occupies 2 bytes.] 1.0 answer the following questions: [the answer is at the end of the article] 1. sizeof (char) = 2. sizeof 'A' = 3. sizeof "A" = 4. strlen ("A") = If you have correctly answered all four questions,

When a sizeof operates on a struct or variable, the return value is its actual size, which may include extra bytes inserted for byte alignment.The second sentence: If the operation is a statically sized array, returns the size of the entire arrayThe

1. if it appears as a string, the compiler will automatically add a 0 to the string as the Terminator. For example, if you write "abc" in the Code, the compiler will help you store "abc \ 0 ".2. The direct string quantity is used as the initial

For many c ++For beginners, the sizeof information of objects or variables is always obscure. The following program lists several typical sizeof information, hoping to answer your questions when using sizeof. Note the following before listing these

What is the size of the class? To be exact, a class is just a type definition, and it is no size. Using the sizeof operator for a type name operation, you get the size of the entity with that type. First of all: we want to know what is the

First, the concept of sizeofSizeof is A single-eye operator of C, such as other C - language operators + +, and so on. It is not a function. the Sizeof operator gives the storage size of its operands in bytes. The operand can be an expression or a

Example one:/** Calculated according to the following conditions: * 1, the size of the structure is equal to the maximum member size of the structure of the integer times * 2, the first address of members of the structure body relative to the first

First, sizeofsizeof (...) Is the operator, the typedef in the header file is unsigned int, the values are computed at compile time, and the arguments can be arrays, pointers, types, objects, functions, and so on.Its function is to obtain the size of

Let's talk about arrays and pointers first: Let's take a look at the following preparations ,,,   Int q [3] [4] = {1, 3, 5, 7}, {3, 4, 6}, {1, 6, 8, 9 }};   A two-dimensional array name, pointing to one-dimensional array a [0], that is, the address

[Extended knowledge 2] Use of strlen () and non-function sizeof [extended Directory] strlen function sizeof (1) function strlen () & #160; & #160; & #160; & #160; prototype: size_tstrlen (constchar * str); & #160; & #160; & #160; & #160; returns a C

sizeof Initial allocated space size, mid-termsizeof (unsigned char) = 1;sizeof (signed char) = 1; sizeof (int) = 4;sizeof (unsigned int) = 4;sizeof (short int) = 2;sizeof (unsigned short) = 2;sizeof (long int) = 4;sizeof (unsi gned long) = 4;sizeof (

  (1) Example 1: Char * Ss = "0123456789"; sizeof (SS); // Result 4 ===" SS is the character pointer to a String constant sizeof (* ss ); // result 1 = * ss is the first character char ss [] = "0123456789"; sizeof (SS); // result 11 = "SS is an

Parse sizeof in C language-general Linux technology-Linux programming and kernel information. The following is a detailed description. I. sizeof Concept Sizeof is a type of single object operator in C language, such as other operators ++ and -- in

Parsing sizeof in C Language I. sizeof Concept Sizeof is a type of single object operator in C language, such as other operators ++ and -- in C language. It is not a function. The sizeof operator provides the storage size of its operands in bytes.

I. sizeof Sizeof (...) is an operator. In the header file, typedef is an unsigned Int. Its value is calculated after compilation. The parameter can be an array, pointer, type, object, function, etc.Its function is to obtain the maximum object size

The C language is not simple: sizeof Q: How many keywords are in C language? Answer: 32. It doesn't matter if you cannot answer the question. Normally, we are playing the art of the program, rather than carrying numbers. However, this special number

Difference between strlen and sizeof (), strlensizeofI. sizeofSizeof (...) is an operator. In the header file, typedef is an unsigned int. Its value is calculated after compilation. The parameter can be an array, pointer, type, object, function, etc.

Use three minutes to understand the C language sizeof, three minutes sizeofI. Concepts Sizeof is a single object operator, which is the same as a ++ operator. Outputs the storage size of the operation object in bytes.Ii. Usage a. operation data type

I. Characteristics of sizeof (compared to strlen)1.sizeof is an operator, strlen is a function, which means that the compiler has calculated sizeof at compile time, so sizeof (x) can be used to define the array dimension.For exampleint

structstruct MYSTRUCT{Double A;Char b;int C;};sizeof (Mystrut) =?????Many friends would think the result is: 8 (sizeof (a)) +1 (sizeof (b)) +4 (sizeof (c)) =13But when we run the output on VS, the result is 16, which is why?This is the compiler's