Re: What do I need to read to understand g: and s: VIM variable prefixes?

On Wed, Oct 31, 2012 at 9:52 PM, donothing successfully
<donothingsuccessfully@gmail.com> wrote:
> On 31 October 2012 19:15, Dotan Cohen <dotancohen@gmail.com> wrote:
>>[…]
>> #include <stdio.h>
>> int foo();
>>
>> int main() {
>> int x = 42;
>> printf("%d", x);
>> foo();
>> return 0;
>> }
>>
>> int foo() {
>> printf("%d", x);
>> }
>>[…]
> Here x is a local variable of the function *main*.
> I think the "global" keyword is more of a weirdism of PHP than
> standard practise.
> http://en.wikipedia.org/wiki/Global_variable#C_and_C.2B.2B
>

Exactly. However, there is no flow control outside of main(), so I
don't account for variables declared outside of main(). If someone is
declaring a variable in an area of the program with no flow control,
then they are explicitly declaring their intentions that the variable
will be global. In other words, it is not a surprise or a gotcha when
the variable is available in a different scope.


--
Dotan Cohen

http://gibberish.co.il
http://what-is-what.com

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