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| author | W. J. van der Laan <laanwj@protonmail.com> | 2021-05-26 15:01:14 +0200 |
|---|---|---|
| committer | W. J. van der Laan <laanwj@protonmail.com> | 2021-05-26 15:01:18 +0200 |
| commit | 456c8d6cd80fc3461957a3553a0483756396b988 (patch) | |
| tree | 85349bee04765f2c871f8c59027c5aaca7d205b7 /src/Makefile.qt.include | |
| parent | ecddd1248258fb904ba88b5255ecbc624eec4f37 (diff) | |
| parent | a02c970eb001b456d74ddc30750fe8b55348ddac (diff) | |
Merge bitcoin-core/gui#313: qt: Optimize string concatenation by default
a02c970eb001b456d74ddc30750fe8b55348ddac qt, refactor: Revert explicit including QStringBuilder (Hennadii Stepanov)
3fd3a0fc87a81d42755246830124833e9ca3f0a9 qt, build: Optimize string concatenation (Hennadii Stepanov)
Pull request description:
From [Qt docs](https://doc.qt.io/qt-5/qstring.html#more-efficient-string-construction):
> ... multiple uses of the \[`QString`\] '+' operator usually means multiple memory allocations. When concatenating n substrings, where n > 2, there can be as many as n - 1 calls to the memory allocator.
With this PR
> ... the '+' will automatically be performed as the `QStringBuilder` '%' everywhere.
The change in the `src/Makefile.qt.include` file does not justify submitting this PR into the main repo, IMHO.
ACKs for top commit:
laanwj:
Code review ACK a02c970eb001b456d74ddc30750fe8b55348ddac
Talkless:
utACK a02c970eb001b456d74ddc30750fe8b55348ddac, built successfully on Debian Sid with Qt 5.15.2, but did not check if any displayed strings are "wrong" after refactoring.
jarolrod:
ACK a02c970eb001b456d74ddc30750fe8b55348ddac
Tree-SHA512: cbb476ee96f27c3bd6e125efab74d8bf24bbdb4c30576b3feea45e203405f3bf5b497dd7d3e11361fc825fcbf4b893b152921a9efdeaf73b42d1865d85f0ae84
Diffstat (limited to 'src/Makefile.qt.include')
| -rw-r--r-- | src/Makefile.qt.include | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/Makefile.qt.include b/src/Makefile.qt.include index 30edb1e82d..9e471d61da 100644 --- a/src/Makefile.qt.include +++ b/src/Makefile.qt.include @@ -288,7 +288,7 @@ RES_ANIMATION = $(wildcard $(srcdir)/qt/res/animation/spinner-*.png) BITCOIN_RC = qt/res/bitcoin-qt-res.rc -BITCOIN_QT_INCLUDES = -DQT_NO_KEYWORDS +BITCOIN_QT_INCLUDES = -DQT_NO_KEYWORDS -DQT_USE_QSTRINGBUILDER qt_libbitcoinqt_a_CPPFLAGS = $(AM_CPPFLAGS) $(BITCOIN_INCLUDES) $(BITCOIN_QT_INCLUDES) \ $(QT_INCLUDES) $(QT_DBUS_INCLUDES) $(QR_CFLAGS) |