Standard Library

A giant library of a variety of functions.

IO

• printf()
• scanf()
• getchar()
• putchar()
• getline()
• fopen()
• rewind()

Strings

• strcpy()
  • strncpy()
• strcat()
• strlen()
• strcmp()
• strchr()
• strstr()
• strtol()

Memory

• sizeof()

Libraries

• stdio.h
• stdbool.h