ypsu

## topfew.c
// this is another mmap based topfew solution.
// context: https://www.tbray.org/ongoing/When/202x/2020/07/01/More-Topfew-Fun.
// other than the static hashmap, it doesn't use dynamic memory.
// rather than dynamically allocating strings for the hash keys,
// it just keeps pointers to the mmap'd data.
// it reparses the fields whenever it wants to compare two hash entries.
// compile like this: gcc -O2 topfew.c

// the following should be cmdline arguments
// but for the demo's simplicity let's just hardcode them:
	// this is another mmap based topfew solution.
	// context: https://www.tbray.org/ongoing/When/202x/2020/07/01/More-Topfew-Fun.
	// other than the static hashmap, it doesn't use dynamic memory.
	// rather than dynamically allocating strings for the hash keys,
	// it just keeps pointers to the mmap'd data.
	// it reparses the fields whenever it wants to compare two hash entries.
	// compile like this: gcc -O2 topfew.c

	// the following should be cmdline arguments
	// but for the demo's simplicity let's just hardcode them: