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afdeprado and handrok This commit contains changes required for MuseScore to compile under …
…MSVC with no warnings.

This commit contains changes required for MuseScore to compile under MSVC with no warnings.

MuseScore is being compiled with the /W4 setting (warning level 4), which is similar to -wall -wextra on clang. This generates lots of warnings on MSVC, mainly for non-standard constructs and for constructs which might be bugs or might lead to bugs.

Most warnings are in the following categories:
- Name hiding: a variable hides a variable with the same name on a larger scope (or a field, or a function parameter). This can easily lead to bugs, and it is a best practice to avoid hiding variable names (see recommendation ES.12 in the C++ Core Guidelines by Stroustrop & Sutter (http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#Res-reuse : ES.12: Do not reuse names in nested scopes)
- Narrowing conversion: a numeric conversion results in loss of significant digits (for example, double -> float). The general recommendation is to use a cast to indicate this is designed behaviour.
- Unreachable code: in several instances, there is unreachable code. The unreachable code is commented out.
- (Potentially) uninitialized local variable. Just initialized the vars.
- foreach(,) -> for(:): this does not generate a warning per-se (only a few of these generate warnings due to name hiding), but changed in keeping with "MuseScore Coding Rules" (https://musescore.org/en/handbook/musescore-coding-rules#Loops), which tells explicitly "Use C++11's "for" instead of Qt's "foreach":" ... "If you happen to be fixing some code and see a "foreach", please change that loop into a "for"."

Most changes are in the categories indicated above. The next listing shows detailed changes for files which are *not* of the aforementioned types.

- all.h: Disable warning C4127 (conditional expression is constant - generated in Qt header file qvector.h)
- awl/aslider.h: unreachable code.
- awl/knob.cpp: name hiding
- awl/mslider.cpp: name hiding
- awl/slider.cpp: name hiding
- bww2mxml/parser.cpp: name hiding
- effects/compressor/compressor.cpp: narrowing conversion
- effects/zita1/zitagui.cpp: name hiding
- fluid/fluid.cpp: foreach replacement. Name hiding.
- fluid/mod.cpp: name hiding.
- fluid/sfont.cpp: foreach replacement. Name hiding. Initialize vars.
- fluid/voice.cpp: Name hiding.
- libmscore/accidental.cpp: Name hiding.
- libmscore/ambitus.cpp: Initialize vars.
- libmscore/barline.cpp: Name hiding. Unreachable code.
- libmscore/beam.cpp: Name hiding.
- libmscore/chordrest.cpp: Unreachable code.
- libmscore/scorefile.cpp: Name hiding.
- manual/genManual.cpp: Name hiding. foreach replacement.
- midi/midifile.cpp: Name hiding. Unreachable code.
- omr/importpdf.cpp: Name hiding. foreach replacement.
- omr/omr.cpp: Name hiding. foreach replacement.
- omr/omrpage.cpp: Name hiding. foreach replacement.
- omr/omrview.cpp: Name hiding. foreach replacement.
- synthesizer/event.cpp: Unreachable code.
- zerberus\channel.cpp: Narrowing conversion.
- zerberus\instrument.cpp: Name hiding.
- zerberus\sfz.cpp: Name hiding.
- zerberus\voice.h: Suppress warning C4201: "nonstandard extension used: nameless struct/union"
- zerberus\zerberus.cpp: Name hiding. Unreferenced parameter.
- zerberus\zerberusgui.cpp: Name hiding.
Latest commit 33dff96 May 2, 2018
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CMakeLists.txt This commit contains all the changes to the CMake build system requir… Aug 3, 2018
midifile.cpp
midifile.h Fix division of MIDI files in format "fps and ticks per frame" Nov 9, 2014
midiinstrument.cpp midi reorganization Apr 15, 2013
midiinstrument.h midi reorganization Apr 15, 2013
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