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author | Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> | 2021-05-02 00:51:06 +0200 |
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committer | Giuseppe D'Angelo <giuseppe.dangelo@kdab.com> | 2021-05-11 13:22:44 +0200 |
commit | e906bb84fba0311b5bc1ec1344dc70ca34981194 (patch) | |
tree | 76c4f654b86befa8ccf8f1c85e182eb0a20e5e2b /src/corelib/global/qflags.h | |
parent | f385b8827a75688b8a2cbd51e8da8a602d7f9567 (diff) |
QFlags: add (named) explicit conversion from/to int
There are some use cases where one may want to convert a QFlags object
from/to an integer deliberately; for instance, to store it in a
bitfield, saving some space. So far this worked by means of a implicit
conversions; instead, also add named conversions for this.
[ChangeLog][QtCore][QFlags] Added the fromInt() and toInt() functions
for explicit conversions from/to a plain integer.
Change-Id: I705559bf75b28c30b4446bb6d0753aedfc808eed
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Diffstat (limited to 'src/corelib/global/qflags.h')
-rw-r--r-- | src/corelib/global/qflags.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/corelib/global/qflags.h b/src/corelib/global/qflags.h index 8d538c97f4..0e20f88c9c 100644 --- a/src/corelib/global/qflags.h +++ b/src/corelib/global/qflags.h @@ -112,6 +112,9 @@ public: constexpr inline QFlags(std::initializer_list<Enum> flags) noexcept : i(initializer_list_helper(flags.begin(), flags.end())) {} + constexpr static inline QFlags fromInt(Int i) noexcept { return QFlags(QFlag(i)); } + constexpr inline Int toInt() const noexcept { return i; } + constexpr inline QFlags &operator&=(int mask) noexcept { i &= mask; return *this; } constexpr inline QFlags &operator&=(uint mask) noexcept { i &= mask; return *this; } constexpr inline QFlags &operator&=(Enum mask) noexcept { i &= Int(mask); return *this; } |