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Restrict scope of global variable inside one file in C


Restrict scope of global variable inside one file in C

By : highbridge
Date : September 23 2020, 03:00 PM
I wish this help you If you want to make my_array visible only in mylib.c, then you need to define it as static in that file and not put anything in the header file.
So mylib.c should contain:
code :
static char my_array[MY_ARRAY_SIZE];


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In C, how do I restrict the scope of a global variable to the file in which it's declared?

In C, how do I restrict the scope of a global variable to the file in which it's declared?


By : Morel
Date : March 29 2020, 07:55 AM
I wish did fix the issue. You #included bar.c, which has the effect of causing the preprocessor to literally copy the contents of bar.c into foo.c before the compiler touches it.
Try getting rid of the include, but telling your compiler to compile both files (e.g. gcc foo.c bar.c) and watch it complain as you expect.
Can we really restrict the scope of a global variable using Static?

Can we really restrict the scope of a global variable using Static?


By : Marzanur
Date : March 29 2020, 07:55 AM
around this issue In restrict the scope of global variable to a file statement, by file they mean compilation unit, i.e. a .c file. Your file2.h is included by file1.c and they constitute one compilation unit file1.
Move the variable to a second compilation unit e.g. file2.c, and you'll see you can't access it even with extern declaration.
PHP global variable scope inside a class

PHP global variable scope inside a class


By : user3884892
Date : March 29 2020, 07:55 AM
around this issue I have the following script , include global $myarray at the start of setvalue() function.
code :
public function setvalue() {
    global $myarray;
    $myvalue = $myarray[0];
}
Scope of global variable inside setInterval

Scope of global variable inside setInterval


By : Amit
Date : March 29 2020, 07:55 AM
like below fixes the issue Move you compute data function outside data() and make it accept variable e.g. computeData(object) then pass the object that you want to through var myVar = setInterval(function(){computeData(dataval)});
Can I define a javascript variable (not global) inside a function and this variable be visible ouside his scope?

Can I define a javascript variable (not global) inside a function and this variable be visible ouside his scope?


By : Kimi's
Date : March 29 2020, 07:55 AM
will be helpful for those in need Using ES6 you can block scope these functions. This gives a "global" variable defined in a specific block, and leaves it accessible to functions defined in this scope.
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