Conversion from string to integer/seconds

• Fast numeric string to int
• Fast time string to seconds
• Fast hex number string to int

Conversion from integer/seconds to string

• Fast unsigned integer to string
• Fast unsigned integer to time string
• Fast unsigned integer to hex string

Links

Evidently the technique I’ve used is called SWAR - SIMD Within A Register.

• Hacker’s Delight
  • Hacker’s Delight miscellaneous material
• The Aggregate Magic Algorithms
• Bit Twiddling Hacks
• Programming pages of Jasper Neumann