D-Programming-Language/dmd — pull request #3491 by 9rnsr (2014-04-23 11:58:45+00:00)
Title: [REG2.066a] Issue 12619 - Invalid warning for unused return value of debug memcpy

https://issues.dlang.org/show_bug.cgi?id=12619

Stop reporting "Call to function %s without side effects discards return value of type" warning against the call of weakly pure function.