A

Related links

• abort()

  Raise the SIGABRT signal to terminate program execution

• abs()

  Return the absolute value of an integer

• accept()

  Accept a connection on a socket

• access()

  Check to see if a file or directory can be accessed

• acos(), acosf(), acosl()

  Compute the arccosine of an angle

• acosh(), acoshf(), acoshl()

  Compute the inverse hyperbolic cosine

• addrinfo

  TCP/IP address information

• aio_cancel()

  Cancel an asynchronous I/O operation

• aio_error()

  Get the error status for an asynchronous I/O operation

• aio_fsync()

  Asynchronously synchronize a file

• aio_read(), aio_read64()

  Asynchronously read from a file

• aio_return()

  Get the return status for an asynchronous I/O operation

• aio_suspend()

  Wait for asynchronous I/O operations to be completed

• aio_write(), aio_write64()

  Asynchronously write to a file

• aiocb, aiocb64

  Asynchronous I/O control block

• alarm()

  Schedule an alarm

• alloca()

  Allocate automatic space from the stack

• alphasort()

  Compare two directory entries

• _amblksiz

  The increment for the break pointer

• _argc

  The number of arguments passed to main()

• _argv

  A pointer to the vector of arguments passed to main()

• asctime(), asctime_r()

  Convert time information to a string

• asin(), asinf(), asinl()

  Compute the arcsine of an angle

• asinh(), asinhf(), asinhl()

  Compute the inverse hyperbolic sine

• assert()

  Print a diagnostic message and optionally terminate the program

• atan(), atanf(), atanl()

  Compute the arctangent of an angle

• atan2(), atan2f()

  Compute the arctangent, determining the quadrant

• atanh(), atanhf(), atanhl()

  Compute an inverse hyperbolic tangent

• atexit()

  Register functions to be called during normal program termination

• atof()

  Convert a string into a double

• atoh()

  Convert a string containing a hexadecimal number into an unsigned number

• atoi()

  Convert a string into an integer

• atol(), atoll()

  Convert a string into a long integer

• atomic_add()

  Safely add to a variable

• atomic_add_value()

  Safely add to a variable, returning the previous value

• atomic_clr()

  Safely clear a variable

• atomic_clr_value()

  Safely clear a variable, returning the previous value

• atomic_set()

  Safely set bits in a variable

• atomic_set_value()

  Safely set bits in a variable, returning the previous value

• atomic_sub()

  Safely subtract from a variable

• atomic_sub_value()

  Safely subtract from a variable, returning the previous value

• atomic_toggle()

  Safely toggle a variable

• atomic_toggle_value()

  Safely toggle a variable, returning the previous value

• _auxv

  A pointer to a vector of auxiliary arguments to main()