The static keyword in C

[@Jose_T131]

Excellent content, subscribed 🤝

[@saturdaysequalsyouth]

I may have missed it in this video but you can also have static functions in C.

[@Embedonix]

Good points! just a side note to people who might not know! You need to declare the variable as "extern" in a header file to be able to see it in other sources (or translation units).

[@joris-rietveld]

Thanks for creating these videos, you are great at explaining stuff.

[@emmanuelamoh7181]

Thanks! This explanation was very helpful!

[@bobesfanchi]

Good review. Thanks.

[@JW-YT]

Thanks for the darker text, much easier to read...

[@nikpapan]

So, if a class (object instance) has a static variable, do I need to use mutexes when setting/reading its value?

[@bobesfanchi]

Can you please do a video explaining the difference between binary semaphore and mutex?

[@TheBumi12]

binary has only two states, mutex is more like a stack that can go to the negative.

[@mingtiantao6928]

very helpful

[@RecycleBin0]

Maybe do a vid on the @ operator in C (i.e absolute address)

[@saturdaysequalsyouth]

There is no @ operator in standard C. Some non-standard C extensions support that feature but exactly how it's used might vary from compiler to compiler so you'll have to consult the documentation of whatever compiler you're using.

[@therealaverma]

what a G great video

[@timholstpetersen79]

Members of classes, both functions and variables that are static have another feature in that they are accessible _without instatiating an object_ of that class. Example: class Test { public: int a; static int b; static void testFunc() {} }; int main() { Test::b = 2; // Ok Test::testFunc(); // Ok Test::a = 1; // ERROR Test *t = new Test(); t->a = 4; // Ok t->b = 6; // Ok t->testFunc(); // Ok std::cout

[@mayue6195]

does static just mean a special global variable but not all functions can access it?

[@EmbeddedSoftware]

In effect, yes.

[@kolhatkarchinmay]

Is "static" has to do something with "entrant" and "reentrant" function???

[@saturdaysequalsyouth]

No

[@sharifahmad6876]

what is the difference between global and "local to the module".

[@EmbeddedSoftware]

A global is accessible to every function in the application. "Local to the module" means accessible to function [below the declaration] in the same file.

[@domaincontroller]

Would you be nice to let me know which tool and other apps you are using to record this video ?

[@carsonholloway]

Why are there classes? This is C++, not C.

[@neonik6204]

Is this about java or c programming :(

[@EmbeddedSoftware]

The title says it: C.

[@jpmorgan187]

cool thanks for the good explanation!