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authorAndreas Sandberg <Andreas.Sandberg@ARM.com>2015-08-07 09:59:12 +0100
committerAndreas Sandberg <Andreas.Sandberg@ARM.com>2015-08-07 09:59:12 +0100
commit3e26756f1dfe1ddd1d7f5e458771c9bf79acb09a (patch)
tree6d189d36689d70e7ce905492af89c8d7d43673e2 /src/cpu/checker
parent83a668ad2564d1231f59f130c81cab6e7e31c364 (diff)
downloadgem5-3e26756f1dfe1ddd1d7f5e458771c9bf79acb09a.tar.xz
base: Use constexpr in Cycles
Declare the constructor and all of the operators that don't change the state of a Cycles instance as constexpr. This makes it possible to use Cycles as a static constant and allows the compiler to evaulate simple expressions at compile time. An unfortunate side-effect of this is that we cannot use assertions since C++11 doesn't support them in constexpr functions. As a workaround, we throw an invalid_argument exception when the assert would have triggered. A nice side-effect of this is that the compiler will evaluate the "assertion" at compile time when an expression involving Cycles can be statically evaluated.
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