Recent questions tagged extern-variable - GATE Overflow

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1

Extern Variable

asked Nov 20, 2018 in Programming by Na462 Loyal (7k points) | 111 views

+1 vote

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2

doubt extern variable here they initialized it is it valid ?
extern int num = 10; // is it valid ??

asked Jan 19, 2018 in Programming by sumit goyal 1 Boss (10.5k points) | 84 views

+2 votes

2 answers

3

Algorithm - Extern Variable
extern int i; int i = 10; i = 5; int main() { printf("%d", i); return 0; } The output for the above code is _______

asked Jan 16, 2018 in Algorithms by targate2018 Active (1.8k points) | 209 views

+2 votes

1 answer

4

[Programming in c] Extern variable
#include <stdio.h> int main() { int a=10; extern int a; return 0; } Why this gives compilation error? Extern is just a declaration.So why it is giving error on compilation?

asked Nov 23, 2017 in Programming by rahul sharma 5 Boss (25.6k points) | 147 views

+3 votes

1 answer

5

Extern Variable in C
extern int var; int main(void) { var = 10; // why it is not considered as definition in prog return 0; } Why this is creating error saying (var is not defined).But as per rule -"by externing a variable we can use the variables anywhere in the program provided we know the declaration of them and the variable is defined somewhere."?

asked Jun 11, 2017 in Programming by Shubhanshu Boss (18.3k points) | 1.6k views

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