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When I'm defining some variables like this:
int a = pop(), b = pop(), c = pop();
does C++ give a guarantee that a is going to be initialized first, then b and then c? or is the order not defined?
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Initialization of Variable int a=10; int a=b+c; a=10; a=b+c; Multiple variables can be initialized in a single statement by single value, for example, a=b=c=d=e=10; NOTE: C variables must be declared before they are used in the c program.
Example# Whereas inside a Translation Unit, order of initialization of global variables is specified, order of initialization across Translation Units is unspecified. That may lead to Static Initialization Order Fiasco.
Variable Declaration in C You will use the keyword extern to declare a variable at any place. Though you can declare a variable multiple times in your C program, it can be defined only once in a file, a function, or a block of code.
[dcl.decl]/3 says
-3- Each init-declarator in a declaration is analyzed separately as if it was in a declaration by itself.
Which means your code is treated like:
int a = pop();
int b = pop();
int c = pop();
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