afdeprado and handrok
…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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