What does static variable mean

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Q

What does static variable mean?

✍: FYIcenter

A

There are 3 main uses for static variables:

If you declare within a function, it retains the value between function calls.
If it is declared for a function name, by default function is extern. So it will be visible from other files. If the function declaration is as static, it is invisible for the outer files.
Static for global variables. By default we can use the global variables from outside files. If it is static global, that variable is limitied to with in the file.

2007-02-26, 7736👍, 0💬

Macro vs. Function
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Storage Classes
What are the different storage classes in C? C has three types of storage: automatic, static and allocated. Variable having block scope and without static specifier have automatic storage duration. Variables with block scope, and with static specifier have static scope. Global variables (i.e, file s... 2007-02-26, 7746👍, 0💬

What does static variable mean
What does static variable mean? There are 3 main uses for static variables: If you declare within a function, it retains the value between function calls. If it is declared for a function name, by default function is extern. So it will be visible from other files. If the function declaration is as s... 2007-02-26, 7737👍, 0💬

Incremental Operatiors
What will be printed as the result of the operation below: main() { int x=10, y=15; x = x++; y = ++y; printf("%d %d\n",x,y); } Answer: 11, 16 2007-02-26, 7533👍, 0💬

Strings vs. Character Arrays
What is the difference between strings and character arrays? A major difference is: string will have static storage duration, whereas as a character array will not, unless it is explicity specified by using the static keyword. Actually, a string is a character array with following properties: * the ... 2007-02-26, 7521👍, 0💬

Conditional Statements
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Conditional Statements
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Multi-dimension Arrays
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Variable Types
What are the types of variables x, y, y and u defined in the following code? #define Atype int* typedef int *p; p x, z; Atype y, u; Answer: x and z are pointers to int. y is a pointer to int but u is just an integer variable 2007-02-26, 7154👍, 0💬

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