C program different Output on different Compilers? -


this question has answer here:

here c program giving different output depending on compiler used:

#include<stdio.h> int main() {     int = 5,j;     j = ++i + i++ + ++i + i++;     printf("%d",j);     return 0; }

check output on following link.

http://imgur.com/z9amswj,vwx3p9s

http://imgur.com/z9amswj,vwx3p9s#1

my question technical reason output different?

the technical reason there no defined behaviour such operation, allowing compilers handle kind of order wish. such cases referred undefined behaviour.


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