Local and Global variables in C - Local and Global variables
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Local and Global variables in C
- GLOBAL VARIABLE
- A variable that is declared outside all functions, is said to be the global variable.
- A global variable might be used in all functions.
- LOCAL VARIABLE
- A variable which is declared within the function, they were local variables.
Sample Code
#include <stdio.h>
int a,b;
void setValues(void)
{
a=100;
b=200;
}
int main()
{
int x,y;
x=10;
y=20;
setValues();
printf("a=%d, b=%d\n",a,b);
printf("x=%d, y=%d\n",x,y);
return 0;
}
Output
a=100, b=200
x=10, y=20