SoniEx2 questions

• Can regex do basic arithmetic?
• Is negating INT_MIN undefined behaviour?
• Is this a portable way to do tagged pointers in C?
• Comparing two potentially NULL values in SQLite query
• How can I deep-compare 2 Lua tables, which may or may not have tables as keys?
• Why can't I put an HSTS header on a meta tag?
• How can I print a dangling pointer, for demonstration purposes?
• Does comparing a pointer that has been free'd invoke UB?
• How to convert a slice into an array reference?
• What's the most efficient way to insert an element into a sorted vector?

SoniEx2 answers