In addition to the Standard C Library, CrossWorks for ARM provides an additional set of library routines that you can use.

###### In this section

ctl_api.h
  Describes the C tasking library, a library of functions that enable you to run multiple tasks in a real-time system.
cross_studio_io.h
  Describes the virtual console services and semi-hosting support that CrossStudio provides to help you when developing your applications.
__armlib.h
  Describes the ARM specific facilities which you can build into your application.