Klas Lindbäck questions

Klas Lindbäck answers

• C language, proper usage of include guards
• Wrapping a C lib with extern "C" except an internal C++ include
• Generating letters in Java [closed]
• Structpointer to array address
• Close opened sockets in child process
• Error "expression must have integral or enum type" in thats code:
• MySQL get a minimum and maximum range out of an interval
• How to convert an Integer to LARGE_INTEGER
• K&R C handling the octals
• MySQL get all the months of the year stats