This way interface of swapInDisks function is cleaner and we avoid a
warning when comparing (previously) signed swap position with an
unsigned array size or index.
Also, add some documentation to swapInDisks function.
After introducing shared_ptr, previous implementation of this function
confused Clang static analyzer into reporting a false-positive "use
after free".
Also, do small cleanup in lines touching diskSwap array.
Also, replacing unique_ptr with shared_ptr makes it unnecessary to move
a pointer when swapping boot disks; moving shared_ptr would lead to
inconsistent internal state.
Fixes: #94
This removes a feature of mounting physical CD-ROMs in DOSBox.
SDL 2.0 removed SDL_cdrom from supported libraries, so to bring this
code back, either the functionality will need to be reimplemented or
SDL_cdrom code modernized for SDL 2.0, and bundled with the repo (the
same way SDL_sound is already bundled).
This fixes the prior logic that relies on the (*)curses library
and header existing in compiler-derived default locations
such as /usr/include, and /usr/lib. However, if the package manager
happens to not install them there, then they will not be found
and the check will fail.
Four scenarios:
1. `./configure` or `./configure --enable-debug=no` produce:
(no mention of debugger; configure continues)
2. `./configure --enable-debug=wrong` produces:
configure: error: --enable-debug=wrong was requested but the value "wrong" is invalid
(terminates with exit code 1)
3. `./configure --enable-debug` produces:
config.h:
defines C_DEBUG 1
With only ncurses library installed:
configure: debugger was requested, finding curses library ...
checking for NCURSES... yes
configure: debugger enabled using the ncurses library
Makefile:
CPPFLAGS = ... -D_DEFAULT_SOURCE -D_XOPEN_SOURCE=600 -I/usr/local/ncurses ...
LIBS = ... -L/usr/local/ncurses -lncurses -ltinfo ...
With only ncursesw installed:
configure: debugger was requested, finding curses library ...
checking for NCURSES... no
checking for NCURSESW... yes
configure: debugger enabled using the ncursesw library
Makefile:
CPPFLAGS = ... -I/opt/ncursesw ...
LIBS = ... -L/opt/ncursesw -lncursesw ...
With only pdcurses isntalled:
configure: debugger was requested, finding curses library ...
checking for NCURSES... no
checking for NCURSESW... no
checking for PDCURSES... yes
configure: debugger enabled using the pdcurses library
Makefile:
CPPFLAGS = ... -I/usr/local/pdcurses ...
LIBS = ... -L/usr/local/pdcurses -lpdcurses -ltinfo ...
Without any curses library installed:
configure: debugger was requested, finding curses library ...
checking for NCURSES... no
checking for NCURSESW... no
checking for PDCURSES... no
configure: error: Package requirements were not met:
<pkg-info prints info about missing package>
(terminates with exit code 1)
4. `./configure --enable-debug=heavy` produces same as above, but:
config.h:
defines C_DEBUG 1
defines C_HEAVY_DEBUG 1
The configure message mentions heavy, for example:
configure: debugger was requested, finding curses library ...
checking for NCURSES... yes
configure: debugger with heavy debugging enabled using the ncurses library
Also, remove all traces of these interfaces from user manual (README
file) and man page (docs/dosbox.1).
MCI (Media Control Interface) was a primary Windows interface. Code
comments and documentation claimed, that it's only for "NT, 2000, XP"
but the code was enabled for Windows 2000 or later (version > 4.0).
DX (Digital audio eXtraction (?)) could be forced on any Windows with
autodetection working only on Vista and Windows 7 (code was disabled for
Windows 8 or later - probably unintentionally).
DIO used DeviceIoControl interface and Windows-specific ioctl calls.
All 3 interfaces depend on SDL and SDL_cdrom functionality to work.
SDL_cdrom 1.2 implementation uses MCI on Windows to provide the same
functionality.
When two files have the same number of warnings, they will appear
in the same order in the summary, making the diff between different
build logs smaller.
Most linters behave this way, so it will fit the users' expectations.
Make -m optional, this makes the script a little bit easier to use.
Behaviour of MAX_WARNINGS and using -1 to disable the check is
preserved.
These issues were detected by Clang static analyzer.
Calling GetCurrentPos might leave pos uninitialized, and it will result
in passing uninitialized value pos.min to msf_to_frames function.
Same situation might happen for GetAudioStatus and all variables it
misses to initialize.
Also, fix formatting in adjacent lines.
Coverity error CID 277445 says:
Out-of-bounds access (ARRAY_VS_SINGLETON).
Passing &ch to function upcase which uses it as an array. This might
corrupt or misinterpret adjacent memory locations.
