Tom Alsberg questions

Tom Alsberg answers

• Is there a SHOULD (or other modal verb) constructs in any programming languages?
• An odd C++ error: test.cpp:15: error: passing ‘const *’ as ‘this’ argument of ‘*’ discards qualifiers
• How do I get a thread ID from an arbitrary pthread_t?
• Control-r reverse-i-search in Bash: how do you "reset" the search in Cygwin?
• How can I redirect STDERR to STDOUT, but ignore the original STDOUT? [duplicate]