jiafu questions

• what's the "#define XXX" 's value?
• why can't print twice deconstruct for this C++ code sample?
• (@Context HttpServletResponse response not work in resteasy
• Why can't -O0 disable gcc compile optimization?
• in production code, what's the log level when failing to validate request parameters or format
• How do I disable Unused Variable warnings in Eclipse in minGW?
• is pthread in glibc.so implemented by weak symbol to provide pthread stub functions?
• how to do data migration in cassandra
• is there issue will stringstream.str().c_str()? [duplicate]
• how to judge which object to be synchronized in java thread?

jiafu answers