This commit consists of numerous small changes, none significant enough to
merit a commit on their own:
* Added extra braces to quash for-loop variable scoping issues for older
compilers (or "g++ -fno-for-scope")
* Appeased "unreachable code" warnings, spurious or otherwise
* Added casts to fix integer-variable signedness warnings
* Added a dummy virtual method to the VectorFileWriter class to silence the
-Wweak-vtables warning from Clang++
* Renamed some parameters in the Expr and GraphicsWindow classes to
eliminate "parameter shadows a field" warnings
* Removed an inert "0 ||" from a conditional, and changed a "&& 0" into an
"#if 0"
* Added missing elements to array/struct/class initializers to zap further
warnings
* Indented some cpp conditionals where appropriate
* Qualified some variables and functions as static to quiet "no previous
declaration" warnings
* toolbar.cpp needed to #include<icons-proto.h> to fix those same "no
previous declaration" warnings from icons.h
* Added some casts and const qualifiers to the Win32 code to address
warnings produced by g++ when compiling under MinGW
* Rewrote Cnf{Freeze,Thaw}Float() to use a union rather than pointer
aliasing; this makes g++ a lot happier
* Removed redundant #includes from win32/w32util.cpp
* With Jonathan's blessing, shortened the last line of the About dialog
text to better match the preceding lines
String literals in C++ are implicitly typed as 'const char *', and with
this change, their const-ness is maintained when assigning them to
variables or passing them as arguments. This significantly cuts down the
number of warnings generated by the compiler.
little test app that links against it. I still need to polish a few
things, but this is more or less as it should be.
[git-p4: depot-paths = "//depot/solvespace/": change = 1944]
Daniel Richard G
Jonathan Westhues