string.h

This header file declares functions for comparing, copying, concatenating, and searching character strings and memory.

The functions in this header file follow a naming convention that describes how the function varies its operation and on what kind of data it operates on. Each function begins with one of these prefixes:

• str - Operates on nul-terminated character strings.
• strn - Accepts a parameter that specifies the maximum length of the string to operate on.
• stri - Ignores letter case. These functions are non-standard.
• mem - Operates on a char-based block of memory.

• Copying Characters
  
  
• Concatenating Characters
  
  
• Comparing Characters
  
  
• Searching Characters