offset indirect

C compiler profiling _ 5.2.3 intermediate code generation and optimization _ access array elements and struct members through "offset" Section 5.2.3 accesses array elements and struct members through "offset" In the previous section, we introduced

In the C language, the use of variables is essentially access to the content stored in the computer memory, and write and read through reference to the memory space. (Note: C has a special keyword register, It is used to declare variables that are

First explain the MySQL version:Mysql> select version ();+-----------+| Version () |+-----------+| 5.7.17 |+-----------+1 row in Set (0.00 sec)Table structure:mysql> desc test;+--------+---------------------+------+-----+---------+----------------+|

The technique of inheriting an array subscript as a pointer plus an offset from the BCPL (C-language ancestor) of the C language. In people's conventional thinking, it is impractical to increase the scope of the subscript in C language at run time.

This article was also published in https://github.com/zhangyachen/zhangyachen.github.io/issues/117First explain the MySQL version:select version();+-----------+| version() |+-----------+5.7.17 |+-----------+1rowinset (0.00 sec)Table

Pointer and its semantics and Application This article is an appendix to the "C ++ from scratch" series. As friends once and again think that the pointer in the "C ++ from scratch" series is too simple, and the various concepts proposed are mixed,

Similarly, this will also be implicitly type-converted long AB::* p = &AB::B_b;. Note The Ab::b_b type is long B::, an implicit type conversion is made. How do I convert? The original Ab::b_b mapping has an offset of 4, then it will now become 12+4=1

Similarly, long AB: * p = & AB: B _ B; is implicitly converted ;. Note: If the AB: B _ B type is long B:, implicit type conversion is performed. How to convert? If the original AB: B _ B ing offset is 4, it will now be 12 + 4 = 16, so that AB. * p =

Today I saw a very good article on the internet, which is about the C + + class inheriting the memory layout. After looking at the benefit of a lot, now turned in my own blog inside, as a later review of the use. --On VC + + object model(US) Jane

To understand this article, you should have some understanding of the implementation of variables in PHP5, the focus of this article is to explain the zval changes in PHP7.Due to a large number of detail descriptions, this article will be divided