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Compiler Warnings About Unreachable Code
Building with Tasking Tricore v6.3r1 compiler, with C++14 as the standard, I get the following warnings:
cptc W0111: ["path/to/st_tree/include/st_tree_nodes.h" 130] statement is unreachable
cptc W0111: ["path/to/st_tree/include/st_tree_nodes.h" 723] statement is unreachable
Culprits: https://github.com/erikerlandson/st_tree/blob/5b00cc47f850c68def63ea2298ef1fdd26d5c124/include/st_tree_nodes.h#L130 https://github.com/erikerlandson/st_tree/blob/c5e184b0663ef8b1c593534435090540e2a236cb/include/st_tree_nodes.h#L723
I may have a possible solution for line 130, but I don't understand the one at line 723. Any ideas?
IIRC, both were to satisfy some version of the compiler that wanted a return value. It was 10 years ago :grinning:
Line 723 is probably because there is a throw
right above that will always execute. Line 130 is because it's after a while(true)
, so it will never reach 130.
st_tree
used to be backward compatible to c++98, however it now assumes >= c++11, so possibly these are no longer an issue. Maybe the warnings can be avoided with a pragma?