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register: make bitfield-mask methods constexpr

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Ref #1458
This commit is contained in:
Martin Stein
2015-03-18 17:18:00 +01:00
committed by Christian Helmuth
parent 7f0460c6a5
commit c52bf757f0
1 changed files with 3 additions and 3 deletions
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6
repos/base/include/util/register.h
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@@ -165,17 +165,17 @@ struct Genode::Register
/**
* Get an unshifted mask of this field
*/
static access_t mask() { return ((access_t)1 << WIDTH) - 1; }
static constexpr access_t mask() { return ((access_t)1 << WIDTH) - 1; }
/**
* Get a mask of this field shifted by its shift in the register
*/
static access_t reg_mask() { return mask() << SHIFT; }
static constexpr access_t reg_mask() { return mask() << SHIFT; }
/**
* Get the bitwise negation of 'reg_mask'
*/
static access_t clear_mask() { return ~reg_mask(); }
static constexpr access_t clear_mask() { return ~reg_mask(); }
/**
* Back reference to containing register