Hello, I get the following warning message when compiling my program: warning: integer constant is too large for "long" type The warning is because of "volatile long long *ptr = (long long *) 0x7FFF00000000;" Is there any flags that I need to use when compiling? Thanks! -- View this message in context: http://www.nabble.com/warning%3A-integer-constant-is-too-large-for-%22long%22-type-tf2776837.html#a7746957 Sent from the gcc - Help mailing list archive at Nabble.com.