[ODE] Warnings from compiling ODE. What to do?
Klaus.Backert at t-online.de
Sun Sep 10 15:17:44 MST 2006
I have compiled and linked ODE 0.6 as a static library successfully
with Mac OS X 10.4.7, Xcode 2.4, gcc 4.0. Out of paranoia and
curiosity I set a lot of gcc warning flags, e.g. -Wreturn-type -
Wmissing-braces -Wparentheses -Wswitch -Wunused-function -Wunused-
label -Wunused-parameter -Wunused-variable -Wunused-value -Wshadow -
I got 442 warnings. Many of them can be ignored, I think. But there
are some cases, which are more difficult.
blablabla/ode/collision_cylinder_sphere.cpp:205: warning: declaration
of 'fDepth' shadows a previous local
blablabla/ode/collision_cylinder_sphere.cpp:136: warning: shadowed
declaration is here
The variable fDepth, which is declared in an outer block, is
redeclared in an inner block.
blablabla/ode/collision_quadtreespace.cpp: In member function 'void
blablabla/ode/collision_quadtreespace.cpp:246: warning: declaration
of 'Block' shadows a member of 'this'
Inside Block::AddObject there is a statement Block* Block = this; . I
cannot find any *member* called "Block", only the *class* with this
There are more examples of this kind. Out of experience I know that
constructs like these are first class sources of programming errors.
Questions: Can I ignore the warnings? If not, what then?
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