Compilation error about webcachesim HOT 4 CLOSED

Hi @dasebe, I encountered the same issue when trying to compile using both g++ and clang++ on OSX. I found the root cause is the move statements as mentioned in the error by OP. The reason you aren't seeing it in GCC 7.2.0 is because -Wall doesn't turn on -Wpessimizing-move which catches these kinds of warnings. The latest version of GCC, clang (the default versions on OSX) turns on -Wpessimizing-move in -Wall.

Reference docs:
GCC 7.2.0
GCC 10.0.0

Fix is to remove the call to move in cache.h at line 79 and webcachesim.cpp at line 24.

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Hi @lakshit07,
which compiler are you using?
I just checked the current version and with g++ (GCC) 7.2.0 there are no compilation warnings or errors. I've also checked GCC 6, and all work as well.

Are you maybe using LLVM/Clang? I don't typically use that compiler, but I'm happy to help debug and fix. Does Clang's suggestion work for you?

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Hi @dasebe
On running g++ --version I get

Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/usr /include/c++/4.2.1
Apple LLVM version 9.0.0 (clang-900.0.39.2)
Target: x86_64-apple-darwin17.4.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

Which Clang suggestion are you referring to?

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Entirely right, fixed in 26223b2

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