Is it possible to assign a variable twice in C ?

Why can I define a variable twice in C? - Stack Overflow

In C the line int a; means both declaration and definition, but we know that defining a variable more than once is not allowed.

Is it possible to assign a variable twice in C++? - Quora

Depends on variable. We have: Here example: int Variable = 10; Variable = 20; int* pVariable = &Variable; *pVariable = 30; // as Variable = 30

Compiler doesnt give any error that I define a variable twice in C ...

To be fair, you aren't defining a variable twice. You are defining two variables with the same label (name). ... Besides which, you have ...

Why C allows multiple global declarations of the same variable but ...

You must define all variables. In C, a definition of a global variable can be used for a declaration multiple times.

In C or C++, when declaring variables for identical integers twice, do ...

What actually happens is up to the compiler (as long as the expected behaviour is maintained). It's likely they will get stored in registers ( ...

Declaring variables

A declaration DOES NOT reserve any memory space (for the variable). The purpose of a variable declaration is: To provide the C/C++ compiler with ...

Is it ever a bad practice to declare the same local variable multiple ...

I think this is true: You only need to declare the variable once. It can then be reused, as code runs in sequence - set it to one value, do whatever with it, ...

What happens when I declare multiple register variables in C on ...

I know that in modern compilers with optimizations, declaring a variable as register is merely a suggestion, and the compiler may ignore it, ...

Can you declare variables with the same name multiple times within ...

You can with var (and function ), though they ultimately end up becoming the same variable declaration - and this only works if there aren't other block ...

Can same variable name used twice for assigning two different ...

In the tutorial, 'my_variable' is initialized with 10 by the compiler itself and below that I again wrote the same thing ie, 'my_variable=10' and it shows None ...

How should I assign 1 value to multiple variables? - Sololearn

First declare all variables and then assign them value on the next line. Example: int a, b, c, d, e; // variable declaration a = b = c = d = e = 10;

C++ Programming - Wikibooks, open books for an open world

It is an error to declare the same variable twice within the same level of scope. ... Variables should be declared as local and as late as possible, and ...

Can you really declare a variable twice? I'm kinda confuse about this ...

You aren't declaring it twice, it's two different variables, the lesson is teaching scope. The curly brackets denote a scope here.

What happens when static variable is declared twice? - Stack Overflow

Yes it is. Each of your b variables is private to the function in which they are declared.

CON40-C. Do not refer to an atomic variable twice in an expression

Every time an atomic variable appears on the left side of an assignment operator, including a compound assignment operator such as *= , an atomic write is ...

Shadowing: When Scopes Collide

Note that we can't make two declarations using the same variable name where it doesn't really make sense: for example, we can't declare the same variable twice ...

C Declare Multiple Variables - W3Schools

To declare more than one variable of the same type, use a comma-separated list. Example: int x = 5, y = 6, z = 50; printf("%d", x + y + z);

Assigning 2 variables to a single operation - Arduino Forum

Hello, I'm trying to combine two variables to be assigned to a single operation. Below are the two variables that I want to combine.

Oddities with local variables

is no longer possible to access the outer local variable. ... of the function, and you cannot declare an identifier to be a local variable twice within the same.

C Programming Variable Declarations and Definitions

Variables of the same type don't need to be declared together. You could also split them up into multiple declarations of a single variable, ...