static local variable

Http://blog.chinaunix.net/uid-27018250-id-3867588.htmlBSS uninitialized global DataData already initialized globalText code snippet, machine instructionRodata string ConstantsReference: "Programmer self-accomplishment"Code compiled machine

The Static keyword in C1. Static local VariablesStatic local variables belong to static storage, which has the following characteristics:(1) A static local variable defines its lifetime as the entire program life cycle within a function, but its

1 Read the program section, answer the questionint main (int argc,char *argv[]){int c=9,d=0;c=c++%5;D=c;printf ("d=%d\n", D);return 0;}A) write out the program outputb) is there a risk in this expression in a portable system? Why?#include

First, a few concepts:1. From the lifetime of the variable, can be divided into static storage mode and dynamic storage modestatic Storage: How the system allocates a fixed amount of storage space (global variables) during program runDynamic storage:

1. Static in process-oriented design1.1 Static global variablesThe variable is defined as a static global variable before the global variable, plus the keyword static. Let's first give an example of a static global variable, as follows: Copy

The difference between heap and stack in C language I. Preface: C Language Program after compiling the connection to form a compilation, the binary image file formed by the connection is made up of stack, heap, data segment (composed of three parts:

Http://www.jb51.net/article/31878.htm Today, read Bowen, see the C + + static keyword Some summary, but also involved in some of the code storage location, in order to have time to see, or to take it to the excerpt down.There are two uses for the

storage categories for local and global variable variables in C language (Static,extern,auto,register) 1. local and global variables When discussing the shape parametric of a function, it was mentioned that the form parametric allocates memory

Paste a JJ's article, wrote very very clearly. Original http://my.donews.com/ben2/2006/02/28/c%E8%AF%AD%E8%A8%80%E4%B8%ADstatic-%E5%8F%98%E9%87%8F/ "My summary." 1), the variable will be placed in the program's global storage area, so that the next

1, local variables: Only local variables, such as in the function body, in the For loop, in the IF statement to declare the defined variables, if not a specific keyword, he is a local variable. 2. Global variables: Variables that act on the entire

Static in C can be used to modify variables, or to modify functions.First look at the time to modify the variable. Variables in C can be divided into the existence of global data areas, stacks and heaps. In fact, we usually say the stack is stack

C vs C + + static function difference C with C + + static the difference between functions The static keyword is C, C + + in the existence of keywords, it is mainly three ways to use, the first

After a smooth connection to the main terminal, according to a program of execution logic, the host will be on the local to reflect the local state of a message sent to the main terminal, this process actually involves the control side and the main

1. Overview A variable of a static declaration has two characteristics in the C language: 1), the variable will be placed in the program's global storage area, so that the next time the call can also maintain the original assignment. This is how

In a multitasking operating system, each process runs in its own memory sandbox. This sandbox is the virtual address space, which is a 4GB memory address block in 32-bit mode. In a Linux system, the kernel process and user processes account for 1:3

Original: http://developer.51cto.com/art/201104/256820.htmStatic is a commonly used modifier in C + +, which is used to control the storage and visibility of variables. extern, "C" is a means to enable C + + to invoke C writing library files, if you

At present, there is a multi-dimensional array with irregular hierarchies. You need to convert it into a two-dimensional array. The source data is as follows. {Code...} the array structure in the preceding format has many layers and looks messy. If

Then review the functions, pointers, and applications.Function1, multidimensional arrays as formal parameters, the size of the first dimension can be omitted (or not omitted), but the size of the other dimensions must be specified. such as

Static global variable: can only be accessed in the current CPP to the static int s_global = 0;void Funca () {////static local variable (function static variable) initialized once will not be overwritten by the static int s_fun Cvalue = 1;}          

Summary of intermediate C language knowledge points: 1. sizeof keywords: Determined during compilation, sizeof (object), sizeof (type), sizeof object, sizeof (pointer) = 4. Int a [5]; sizeof (a) = 20; sizeof (& a) = 20; 2. Empty struct cannot be