This "underscoring" seems to occur a lot, and I was wondering if this was a requirement in the Python language, or merely a matter of convention? Also, could someone name and explain which functio...

What does it mean when a PHP function name begins with an underscore? for example: __construct() I know what the construct means but I've seen other places where the function begins with an under...

extern int ether_hostton (__const char *__hostname, struct ether_addr *__addr) __THROW; I found the above function definition in /usr/include/netinet/ether.h on a Linux box. Can someone explain...