On Wednesday, 11 May 2016 at 13:29:56 UTC, Gopan wrote:
int x; while( scanf("%d", &x), x!= 0) // until user input 0. { //do something with x }Without the comma operator, I would have to repeat the scanf statement.int x; scanf("%d", &x); while(x != 0) { //do something with x scanf("%d", &x); }
Aside from scanf specifics, you shouldn't repeat the setup code, use do...while(true) with if and break.
In places where the comma operator does help, use a comma(expr,result) template function, implemented here:
http://forum.dlang.org/post/ngslcl$otg$1...@digitalmars.com
