Local Vs Global variabls

[vidyagouri]

Suppose that we have declared a global variable say int x in C language. A variable with the same name i.e., int x is also declared in a function so that it is a local variable to that function. Now, the question is how to access global value of x in that function?

[JosAH]

Have a look at this recent thread.

kind regards,

Jos

[OraMaster]

@vidyagouri
Hello Vidya
In C, the local variable takes precedance over the global, unless the global is declared static, in which case the local one cannot even be declared.

Regds,
Bhushan

[JosAH]

@OraMaster
Who told you that nonsense?

kind regards,

Jos

[Banfa]

No declaring a global static does not prevent you declaring a local variable with the same name, for example this is valid

#include <stdio.h>
 
static void PrintGlobal(void);
 
static int V1 = 5;
 
int main()
{
    int V1 = 10;
 
    printf("V1: %d\n", V1);
 
    PrintGlobal();
 
    return 0;
}
 
static void PrintGlobal(void)
{
    puts("Global Data");
    printf("V1: %d\n", V1);
}
 

Output:
V1: 10
Global Data
V1: 5