Borland C++ 3.1 run-time library

517 entries extracted from the Library Reference. Badges: checked against the scan, n extraction notes.

By header (32)

Name	Header	Description
`_8087` 1	`dos.h`	Coprocessor chip flag.
`_argc`	`dos.h`	Keeps a count of command-line arguments.
`_argv`	`dos.h`	An array of pointers to command-line arguments.
`_bios_disk` 1	`bios.h`	Issues BIOS disk drive services
`_bios_equiplist`	`bios.h`	Checks equipment.
`_bios_keybrd`	`bios.h`	Keyboard interface, using BIOS services directly.
`_bios_memsize` 1	`bios.h`	Returns memory size.
`_bios_printer`	`bios.h`	Printer I/O using BIOS services directly.
`_bios_serialcom` 1	`bios.h`	Performs serial I/O.
`_bios_timeofday`	`bios.h`	Reads or sets the BIOS timer.
`_c_exit` 1	`process.h`	Perform _exit cleanup without terminating the program.
`_cexit` 1	`process.h`	Perform exit cleanup without terminating the program.
`_chain_intr` 1	`dos.h`	Chains to another interrupt handler.
`_chdrive` 1	`direct.h`	Sets current disk drive.
`_chmod` 1	`dos.h`	Gets or sets DOS file attributes.
`_clear87` 1	`float.h`	Clears floating-point status word.
`_close, close` 1	`io.h`	Closes a file.
`_control87`	`float.h`	Manipulates the floating-point control word.
`_creat, _dos_creat` 1	`dos.h`	Creates a new file or overwrites an existing one.
`_ctype`	`ctype.h`	An array of character attribute information.
`_dos_close` 1	`dos.h`	Closes a file.
`_dos_creatnew` 1	`dos.h`	Creates a new file.
`_dos_findfirst` 1	`dos.h`	Searches a disk directory.
`_dos_findnext` 1	`dos.h`	Continues _dos_findfirst search.
`_dos_getdiskfree`	`dos.h`	Gets disk free space.
`_dos_getdrive, _dos_setdrive` 1	`dos.h`	Gets and sets the current drive number.
`_dos_getfileattr, _dos_setfileattr` 1	`dos.h`	Changes file access mode.
`_dos_getftime, _dos_setftime` 1	`dos.h`	Gets and sets file date and time.
`_dos_gettime, _dos_settime` 1	`dos.h`	Gets and sets system time.
`_dos_getvect` 1	`dos.h`	Gets interrupt vector.
`_dos_setvect` 1	`dos.h`	Sets interrupt vector entry.
`_dos_write` 1	`dos.h`	Writes to a file.
`_exit` 1	`stdlib.h`	Terminates program.
`_fmode` 1	`fcntl.h`	Determines default file-translation mode.
`_fpreset` 1	`float.h`	Reinitializes floating-point math package.
`_fsopen`	`stdio.h`	Opens a stream with file sharing.
`_fullpath`	`stdlib.h`	Convert a path name from relative to absolute.
`_getdcwd` 1	`direct.h`	Gets current directory for specified drive.
`_getdrive`	`direct.h`	Gets current drive number.
`_graphfreemem`	`graphics.h`	User hook into graphics memory deallocation.
`_graphgetmem`	`graphics.h`	User hook into graphics memory allocation.
`_harderr` 1	`dos.h`	Establishes a hardware error handler.
`_hardresume` 1	`dos.h`	Hardware error handler.
`_hardretn` 1	`dos.h`	Hardware error handler.
`_heaplen`	`dos.h`	Holds the length of the near heap.
`_lrotl` 1	`stdlib.h`	Rotates an unsigned long integer value to the left.
`_lrotr` 2	`stdlib.h`	Rotates an unsigned long integer value to the right.
`_makepath` 1	`stdlib.h`	Builds a path from component parts.
`_new_handler` checked 2	`new.h`	Traps new allocation miscues.
`_open, _dos_open` 1	`fcntl.h`	Opens a file for reading or writing.
`_osmajor, _osminor` 1	`dos.h`	Contain the major and minor DOS version numbers.
`_ovrbuffer` 1	`dos.h`	Change the size of the overlay buffer.
`_OvrInitEms` 1	`dos.h`	Initializes expanded memory swapping for the overlay manager.
`_OvrInitExt` 1	`dos.h`	Initializes extended memory swapping for the overlay manager.
`_psp` 1	`dos.h`	Contains the segment address of the program segment prefix (PSP) for the current program.
`_read, _dos_read`	`io.h`	Reads from file.
`_rotl` 1	`stdlib.h`	Bit-rotates an unsigned integer value to the left.
`_rotr` 2	`stdlib.h`	Bit-rotates an unsigned integer value to the right.
`_searchenv` 1	`stdlib.h`	Searches an environment path for a file.
`_setcursortype`	`conio.h`	Selects cursor appearance.
`_splitpath`	`stdlib.h`	Splits a full path name into its components.
`_status87` 1	`float.h`	Gets floating-point status.
`_stklen` 1	`dos.h`	Holds size of the stack.
`_strdate` 1	`time.h`	Converts current date to string.
`_strerror` 1	`string.h`	Builds a customized error message.
`_strtime` 1	`time.h`	Converts current time to string.
`_tolower` 1	`ctype.h`	Translates characters to lowercase.
`_toupper`	`ctype.h`	Translates characters to uppercase.
`_version` 1	`dos.h`	Contains the DOS version number.
`_write` 1	`io.h`	Writes to a file.
`_wscroll` checked 1	`conio.h`	Enables or disables scrolling in console I/O functions.
`abort`	`stdlib.h`	Abnormally terminates a program.
`abs` 1	`math.h`	Returns the absolute value of an integer.
`absread`	`dos.h`	Reads absolute disk sectors.
`abswrite` 1	`dos.h`	Writes absolute disk sectors.
`access`	`io.h`	Determines accessibility of a file.
`acos, acosl` 1	`math.h`	Calculates the arc cosine.
`alloca`	`malloc.h`	Allocates temporary stack space.
`allocmem, _dos_allocmem` 1	`dos.h`	Allocates DOS memory segment.
`arc`	`graphics.h`	Draws an arc.
`arg`	`complex.h`	Gives the angle of a number in the complex plane.
`asctime`	`time.h`	Converts date and time to ASCII.
`asin, asinl` 1	`math.h`	Calculates the arc sine.
`assert`	`assert.h`	Tests a condition and possibly aborts.
`atan, atanl` 1	`math.h`	Calculates the arc tangent.
`atan2, atan2l`	`math.h`	Calculates the arc tangent of ylx.
`atexit`	`stdlib.h`	Registers termination function.
`atof, _atold`	`math.h`	Converts a string to a floating-point number.
`atoi`	`stdlib.h`	Converts a string to an integer.
`atol`	`stdlib.h`	Converts a string to a long.
`bar`	`graphics.h`	Draws a two-dimensional bar.
`bar3d`	`graphics.h`	Draws a three-dimensional bar.
`bdos`	`dos.h`	Accesses DOS system calls.
`bdosptr`	`dos.h`	Accesses DOS system calls.
`bed`	`bcd.h`	Converts a number to binary coded decimal (BCD).
`bioscom`	`bios.h`	Performs serial I/O.
`biosdisk`	`bios.h`	Issues BIOS disk drive services.
`biosequip`	`bios.h`	Checks equipment.
`bioskey`	`bios.h`	Keyboard interface, using BIOS services directly.
`biosmemory`	`bios.h`	Returns memory size.
`biosprint`	`bios.h`	Printer I/O using BIOS services directly.
`biostime`	`bios.h`	Reads or sets the BIOS timer.
`brk`	`alloc.h`	Changes data-segment space allocation.
`bsearch`	`stdlib.h`	Binary search of an array.
`cabs, cabsl`	`math.h`	Calculates the absolute value of complex number.
`calloc`	`stdlib.h`	Allocates main memory.
`ceil, ceill`	`math.h`	Rounds up.
`cgets`	`conio.h`	Reads a string from the console.
`chdir`	`dir.h`	Changes current directory.
`chmod`	`sys/stat.h`	Changes file access mode.
`chsize`	`io.h`	Changes the file size.
`circle`	`graphics.h`	Draws a circle of the given radius with its center at ix,y).
`cleardevice` 1	`graphics.h`	Clears the graphics screen.
`clearerr`	`stdio.h`	Resets error indication.
`clearviewport`	`graphics.h`	Clears the current viewport.
`clock`	`time.h`	Determines processor time.
`closedir`	`dirent.h`	Closes a directory stream.
`closegraph`	`graphics.h`	Shuts down the graphics system.
`clreol` 3	`conio.h`	Clears to end of line in text window.
`clrscr` 1	`conio.h`	Clears the text-mode window.
`complex`	`complex.h`	Creates complex numbers.
`conj`	`complex.h`	Returns the complex conjugate of a complex number.
`coreleft`	`alloc.h`	Returns a measure of unused RAM memory.
`cos, cosl` 1	`math.h`	Calculates the cosine of a value.
`cosh, coshl` 1	`math.h`	Calculates the hyperbolic cosine of a value.
`country`	`dos.h`	Returns country-dependent information.
`cprintf`	`conio.h`	Writes formatted output to the screen.
`cputs`	`conio.h`	Writes a string to the screen.
`creat`	`sys/stat.h`	Creates a new file or overwrites an existing one.
`creatnew`	`dos.h`	Creates a new file.
`creattemp`	`dos.h`	Creates a unique file in the directory associated with the path name.
`cscanf`	`conio.h`	Scans and formats input from the console.
`ctime`	`time.h`	Converts date and time to a string.
`ctrlbrk`	`dos.h`	Sets control-break handler.
`daylight`	`time.h`	Indicates whether daylight saving time adjustments will be made.
`delay`	`dos.h`	Suspends execution for an interval (milliseconds).
`delline`	`conio.h`	Deletes line in text window.
`detectgraph`	`graphics.h`	Determines graphics driver and graphics mode to use by checking the hardware.
`difftime`	`time.h`	Computes the difference between two times.
`directvideo`	`conio.h`	Flag that controls video output.
`disable, _disable, enable, _enable` 1	`dos.h`	Disables and enables interrupts.
`div`	`stdlib.h`	Divides two integers, returning quotient and remainder.
`dosexterr`	`dos.h`	Gets extended DOS error information.
`dostounix` 1	`dos.h`	Converts date and time to UNIX time format.
`drawpoly`	`graphics.h`	Draws the outline of a polygon.
`dup`	`io.h`	Duplicates a file handle.
`dup2`	`io.h`	Duplicates a file handle (oldhandle) onto an existing file handle (nezvhandle).
`ecvt`	`stdlib.h`	Converts a floating-point number to a string.
`ellipse`	`dos.h`	Draws an elliptical arc. Inserts literal values directly into code.
`environ`	`dos.h`	Accesses DOS environment variables.
`eof`	`io.h`	Checks for end-of-file.
`errno, _doserrno, sys_errlist, sys_nerr` 1	`errno.h`	Enable perror to print error messages.
`execl, execle, execlp, execlpe, execv, execve, execvp, execvpe`	`process.h`	Loads and runs other programs.
`exit`	`stdlib.h`	Terminates program.
`exp, expl`	`math.h`	Calculates the exponential e to the x.
`fabs, fabsl` 1	`math.h`	Returns the absolute value of a floating-point number.
`farcalloc`	`alloc.h`	Allocates memory from the far heap.
`farcoreleft`	`alloc.h`	Returns a measure of unused memory in far heap.
`farfree`	`alloc.h`	Frees a block from far heap.
`farheapcheck`	`alloc.h`	Checks and verifies the far heap.
`farheapcheckfree`	`alloc.h`	Checks the free blocks on the far heap for a constant value.
`farheapchecknode`	`alloc.h`	Checks and verifies a single node on the far heap.
`farheapfillfree`	`alloc.h`	Fills the free blocks on the far heap with a constant value.
`farheapwalk`	`alloc.h`	farheapwalk is used to "walk" through the far heap node by node.
`farmalloc`	`alloc.h`	Allocates from far heap.
`farrealloc`	`alloc.h`	Adjusts allocated block in far heap.
`fclose`	`stdio.h`	Closes a stream.
`fcloseall`	`stdio.h`	Closes open streams.
`fcvt`	`stdlib.h`	Converts a floating-point number to a string.
`fdopen`	`stdio.h`	Associates a stream with a file handle.
`feof`	`stdio.h`	Detects end-of-file on a stream.
`ferror` 1	`stdio.h`	Detects errors on stream.
`fflush`	`stdio.h`	Hushes a stream.
`fgetc`	`stdio.h`	Gets character from stream.
`fgetchar`	`stdio.h`	Gets character from stdin.
`fgetpos`	`stdio.h`	Gets the current file pointer.
`fgets`	`stdio.h`	Gets a string from a stream.
`filelength`	`io.h`	Gets file size in bytes.
`fileno`	`stdio.h`	Gets file handle.
`fillellipse`	`graphics.h`	Draws and fills an ellipse.
`fillpoly`	`graphics.h`	Draws and fills a polygon.
`findfirst` checked	`dir.h`	Searches a disk directory.
`findnext`	`dir.h`	Continues findfirst search.
`floodfill`	`graphics.h`	Flood-fills a bounded region.
`floor, floorl`	`math.h`	Rounds down.
`flushall`	`stdio.h`	Flushes all streams.
`fmod, fmodl` 1	`math.h`	Calculates x modulo y, the remainder of x/y.
`fnmerge`	`dir.h`	Builds a path from component parts.
`fnsplit`	`dir.h`	Splits a full path name into its components.
`fopen` checked	`stdio.h`	Opens a stream.
`FP_OFF, FP_SEG`	`dos.h`	Gets a far address offset or segment.
`fprintf`	`stdio.h`	Writes formatted output to a stream.
`fputc`	`stdio.h`	Puts a character on a stream.
`fputchar`	`stdio.h`	Outputs a character on stdout.
`fputs`	`stdio.h`	Outputs a string on a stream.
`fread` checked	`stdio.h`	Reads data from a stream.
`free`	`alloc.h`	Frees allocated block.
`freemem, _dos_freemem` 1	`dos.h`	Frees a previously allocated DOS memory block.
`freopen`	`stdio.h`	Associates a new file with an open stream.
`frexp, frexpl`	`math.h`	Splits a number into mantissa and exponent.
`fscanf`	`stdio.h`	Scans and formats input from a stream.
`fseek` checked	`stdio.h`	Repositions a file pointer on a stream.
`fsetpos`	`stdio.h`	Positions the file pointer of a stream.
`fstat, stat`	`sys/stat.h`	Gets open file information.
`ftell`	`stdio.h`	Returns the current file pointer.
`ftime`	`sys/timeb.h`	Stores current time in timeb structure.
`fwrite`	`stdio.h`	Writes to a stream.
`gcvt`	`stdlib.h`	Converts floating-point number to a string.
`geninterrupt`	`dos.h`	Generates a software interrupt.
`getarccoords`	`graphics.h`	Gets coordinates of the last call to arc.
`getaspectratio`	`graphics.h`	Retrieves the current graphics mode's aspect ratio.
`getbkcolor`	`graphics.h`	Returns the current background color.
`getc`	`stdio.h`	Gets character from stream.
`getcbrk`	`dos.h`	Gets control-break setting.
`getch`	`conio.h`	Gets character from keyboard, does not echo to screen.
`getchar`	`stdio.h`	Gets character from stdin.
`getche`	`conio.h`	Gets character from the keyboard, echoes to screen.
`getcolor`	`graphics.h`	Returns the current drawing color.
`getcurdir`	`dir.h`	Gets current directory for specified drive.
`getcwd`	`dir.h`	Gets current working directory.
`getdate, _dos_getdate, _dos_setdate, setdate`	`dos.h`	Gets and sets system date.
`getdefaultpalette`	`graphics.h`	Returns the palette definition structure.
`getdfree`	`dos.h`	Gets disk free space.
`getdisk, setdisk`	`dir.h`	Gets or set the current drive number.
`getdrivername` 1	`graphics.h`	Returns a pointer to a string containing the name of the current graphics driver.
`getdta`	`dos.h`	Gets disk transfer address.
`getenv`	`stdlib.h`	Gets a string from environment.
`getfat`	`dos.h`	Gets file allocation table information for given drive.
`getfatd`	`dos.h`	Gets file allocation table information.
`getfillpattern` 1	`graphics.h`	Copies a user-defined fill pattern into memory.
`getfillsettings`	`graphics.h`	Gets information about current fill pattern and color.
`getftime, setftime`	`io.h`	Gets and set the file date and time.
`getgraphmode`	`graphics.h`	Returns the current graphics mode.
`getimage`	`graphics.h`	Saves a bit image of the specified region into memory.
`getlinesettings`	`graphics.h`	Gets the current line style, pattern, and thickness.
`getmaxcolor`	`graphics.h`	Returns maximum color value that can be passed to the setcolor function.
`getmaxmode`	`graphics.h`	Returns the maximum mode number for the current driver.
`getmaxx`	`graphics.h`	Returns maximum x screen coordinate.
`getmaxy`	`graphics.h`	Returns maximum y screen coordinate.
`getmodename`	`graphics.h`	Returns a pointer to a string containing the name of a specified graphics mode.
`getmoderange`	`graphics.h`	Gets the range of modes for a given graphics driver.
`getpalette`	`graphics.h`	Gets information about the current palette.
`getpalettesize`	`graphics.h`	Returns size of palette color lookup table.
`getpass`	`conio.h`	Reads a password.
`getpid`	`process.h`	Gets the process ID of a program.
`getpixel`	`graphics.h`	Gets the color of a specified pixel.
`getpsp`	`dos.h`	Gets the program segment prefix.
`gets`	`stdio.h`	Gets a string from stdin.
`gettext`	`conio.h`	Copies text from text mode screen to memory.
`gettextinfo`	`conio.h`	Gets text mode video information.
`gettextsettings`	`graphics.h`	Gets information about the current graphics text font.
`gettime, settime` 1	`dos.h`	Gets and sets the system time.
`getvect, setvect`	`dos.h`	Gets and sets interrupt vector.
`getverify`	`dos.h`	Returns the state of the DOS verify flag.
`getviewsettings`	`graphics.h`	Gets information about the current viewport.
`getw`	`stdio.h`	Gets integer from stream.
`getx`	`graphics.h`	Returns the current graphics position's x-coordinate.
`gety`	`graphics.h`	Returns the current graphics position's y-coordinate.
`gmtime`	`time.h`	Converts date and time to Greenwich mean time (GMT).
`gotoxy`	`conio.h`	Positions cursor in text window.
`graphdefaults`	`graphics.h`	Resets all graphics settings to their defaults.
`grapherrormsg`	`graphics.h`	Returns a pointer to an error message string.
`graphresult`	`graphics.h`	Returns an error code for the last unsuccessful graphics operation.
`harderr, hardresume, hardretn`	`dos.h`	Establishes and handles hardware errors.
`heapcheck`	`alloc.h`	Checks and verifies the heap.
`heapcheckfree`	`alloc.h`	Checks the free blocks on the heap for a constant value.
`heapchecknode`	`alloc.h`	Checks and verifies a single node on the heap.
`heapfillfree`	`alloc.h`	Fills the free blocks on the heap with a constant value.
`heapwalk`	`alloc.h`	heapwalk is used to "walk" through the heap, node by node.
`highvideo`	`conio.h`	Selects high-intensity characters.
`hypot, hypotl` 1	`math.h`	Calculates hypotenuse of a right triangle.
`imag`	`complex.h`	Returns the imaginary part of a complex number.
`imagesize`	`graphics.h`	Returns the number of bytes required to store a bit image.
`initgraph`	`graphics.h`	Initializes the graphics system.
`inp`	`conio.h`	Reads a byte from a hardware port.
`inport`	`dos.h`	Reads a word from a hardware port.
`inportb`	`dos.h`	Reads a byte from a hardware port.
`inpw`	`conio.h`	Reads a word from a hardware port.
`insline`	`conio.h`	Inserts a blank line in the text window.
`installuserdriver`	`graphics.h`	Installs a vendor-added device driver to the BGI device driver table.
`installuserfont`	`graphics.h`	Loads a font file (.CHR) that is not built into the BGI system.
`int86`	`dos.h`	General 8086 software interrupt.
`int86x`	`dos.h`	General 8086 software interrupt interface.
`intdos`	`dos.h`	General DOS interrupt interface.
`intdosx`	`dos.h`	General DOS interrupt interface.
`intr`	`dos.h`	Alternate 8086 software interrupt interface.
`ioctl` 1	`io.h`	Controls I/O device.
`isalnum`	`ctype.h`	Character classification macro.
`isalpha`	`ctype.h`	Character classification macro.
`isascii`	`ctype.h`	Character classification macro.
`isatty`	`io.h`	Checks for device type.
`iscntrl`	`ctype.h`	Character classification macro.
`isdigit`	`ctype.h`	Character classification macro.
`isgraph`	`ctype.h`	Character classification macro.
`islower`	`ctype.h`	Character classification macro.
`isprint`	`ctype.h`	Character classification macro.
`ispunct`	`ctype.h`	Character classification macro.
`isspace`	`ctype.h`	Character classification macro.
`isupper`	`ctype.h`	Character classification macro.
`isxdigit`	`ctype.h`	Character classification macro.
`itoa`	`stdlib.h`	Converts an integer to a string.
`kbhit`	`conio.h`	Checks for currently available keystrokes.
`keep, _dos_keep`	`dos.h`	Exits and remains resident.
`labs`	`math.h`	Gives long absolute value.
`ldexp, ldexpl` 1	`math.h`	Calculates x x 2^^p.
`ldiv` 1	`stdlib.h`	Divides two longs, returning quotient and remainder.
`lfind` 1	`stdlib.h`	Performs a Unear search.
`line`	`graphics.h`	Draws a line between two specified points.
`linerel`	`graphics.h`	Draws a line a relative distance from the current position (CP).
`lineto`	`graphics.h`	Draws a line from the current position (CP) to {x,y).
`localeconv`	`locale.h`	Returns a pointer to the current locale structure.
`localtime`	`time.h`	Converts date and time to a structure.
`lock`	`io.h`	Sets file-sharing locks.
`locking`	`io.h`	Sets or resets file-sharing locks.
`log, logl` 1	`math.h`	Calculates the natural logarithm of x.
`loglO, loglOl` 1	`math.h`	Calculates log io(^')-
`longjmp`	`setjmp.h`	Performs nonlocal goto.
`lowvideo`	`conio.h`	Selects low-intensity characters.
`lsearch` 1	`stdlib.h`	Performs a linear search.
`lseek` 1	`io.h`	Moves file pointer.
`ltoa` 1	`stdlib.h`	Converts a long to a string.
`malloc`	`stdlib.h`	Allocates main memory.
`matherr, _matherrl` 1	`math.h`	User-modifiable math error handler.
`max`	`stdlib.h`	Returns the larger of two values.
`mblen`	`stdlib.h`	Determines the length of a multibyte character.
`mbstowcs`	`stdlib.h`	Converts a multibyte string to a wchart array.
`mbtowc`	`stdlib.h`	Converts a multibyte character to wchar_t code.
`memccpy, fmemccpy` 1	`mem.h`	Copies a block of n bytes.
`memchr, _fmemchr` 1	`mem.h`	Searches n bytes for character c.
`memcmp, _fmemcmp` 1	`mem.h`	Compares two blocks for a length of exactly n bytes.
`memcpy, _fmemcpy`	`mem.h`	Copies a block of n bytes.
`memicmp, _fmemicmp` 1	`mem.h`	Compares n bytes of two character arrays, ignoring case.
`memmove`	`mem.h`	Copies a block of n bytes.
`memset, _fmemset` 1	`mem.h`	Sets n bytes of a block of memory to byte c.
`min`	`stdlib.h`	Returns the smaller of two values.
`MK_FP` 1	`dos.h`	Makes a far pointer.
`mkdir`	`dir.h`	Creates a directory.
`mktemp` 1	`dir.h`	Makes a unique file name.
`mktime`	`time.h`	Converts time to calendar format.
`modf, modfl`	`math.h`	Splits a double or long double into integer and fractional parts.
`movedata`	`mem.h`	Copies n bytes.
`moverel`	`graphics.h`	Moves the current position (CP) a relative distance.
`movetext`	`conio.h`	Copies text onscreen from one rectangle to another.
`moveto`	`graphics.h`	Moves the current position (CP) to {x,y).
`movmem`	`mem.h`	Moves a block of length bytes.
`norm`	`complex.h`	Returns the square of the absolute value.
`normvideo`	`conio.h`	Selects normal-intensity characters.
`nosound`	`dos.h`	Turns PC speaker off.
`open`	`fcntl.h`	Opens a file for reading or writing.
`opendir`	`dirent.h`	Opens a directory stream for reading.
`outp`	`conio.h`	Outputs a byte to a hardware port.
`outport, outportb`	`dos.h`	Outputs a word or byte to a hardware port.
`outpw`	`conio.h`	Outputs a word to a hardware port.
`outtext`	`graphics.h`	Displays a string in the viewport.
`outtextxy`	`graphics.h`	Displays a string at a specified location.
`parsfnm`	`dos.h`	Parses file name.
`peek`	`dos.h`	Returns the word at memory location specified by segmentioffset.
`peekb`	`dos.h`	Returns the byte of memory specified by segmentoffset.
`perror`	`stdio.h`	Prints a system error message.
`pieslice`	`graphics.h`	Draws and fills in pie slice.
`poke`	`dos.h`	Stores an integer value at a memory location given by segment-.offset.
`pokeb`	`dos.h`	Stores a byte value at memory location segmentoffset.
`polar`	`complex.h`	Returns a complex number with a given magnitude and angle.
`poly, polyl`	`math.h`	Generates a polynomial from arguments.
`pow, powl`	`math.h`	Calculates x to the power of y.
`pow10, pow10l`	`math.h`	Calculates 10 to the power of p.
`printf` checked	`stdio.h`	Writes formatted output to stdout.
`putc`	`stdio.h`	Outputs a character to a stream.
`putch`	`conio.h`	Outputs character to screen.
`putchar`	`stdio.h`	Outputs character on stdout.
`putenv` 1	`stdlib.h`	Adds string to current environment.
`putimage`	`graphics.h`	Outputs a bit image to screen.
`putpixel`	`graphics.h`	Plots a pixel at a specified point.
`puts`	`stdio.h`	Outputs a string to stdout.
`puttext`	`conio.h`	Copies text from memory to the text mode screen.
`putw`	`stdio.h`	Puts an integer on a stream.
`qsort` 1	`stdlib.h`	Sorts using the quicksort algorithm.
`raise`	`signal.h`	Sends a software signal to the executing program.
`rand`	`stdlib.h`	Random number generator.
`randbrd`	`dos.h`	Reads random block.
`randbwr`	`dos.h`	Writes random block.
`random`	`stdlib.h`	Random number generator.
`randomize` 1	`stdlib.h`	InitiaHzes random number generator.
`read`	`io.h`	Reads from file.
`readdir`	`dirent.h`	Reads the current entry from a directory stream.
`real`	`complex.h`	Returns the real part of a complex number or converts a BCD number back to float, double or long double.
`realloc`	`stdlib.h`	Reallocates main memory.
`rectangle`	`graphics.h`	Draws a rectangle.
`registerbgidriver`	`graphics.h`	Registers a user-loaded or linked-in graphics driver code with the graphics system.
`registerbgifont`	`graphics.h`	Registers linked-in stroked font code.
`remove`	`stdio.h`	Removes a file.
`rename`	`stdio.h`	Renames a file.
`restorecrtmode`	`graphics.h`	Restores the screen mode to its pre-initgraph setting.
`rewind`	`stdio.h`	Repositions a file pointer to the beginning of a stream.
`rewinddir`	`dirent.h`	Resets a directory stream to the first entry.
`rmdir`	`dir.h`	Removes a DOS file directory.
`rmtmp` 1	`stdio.h`	Removes temporary files.
`sbrk`	`alloc.h`	Changes data segment space allocation.
`scanf` 1	`stdio.h`	Scans and formats input from the stdin stream.
`searchpath`	`dir.h`	Searches the DOS path for a file.
`sector`	`graphics.h`	Draws and fills an elliptical pie slice.
`segread`	`dos.h`	Reads segment registers.
`set_new_handler` 1	`new.h`	Sets the function to be called when a request for memory allocation cannot be satisfied.
`setactivepage`	`graphics.h`	Sets active page for graphics output.
`setallpalette`	`graphics.h`	Changes all palette colors as specified.
`setaspectratio`	`graphics.h`	Changes the default aspect ratio correction factor.
`setbkcolor`	`graphics.h`	Sets the current background color using the palette.
`setblock, _dos_setblock` 1	`dos.h`	Modifies the size of a previously allocated block.
`setbuf`	`stdio.h`	Assigns buffering to a stream.
`setcbrk`	`dos.h`	Sets control-break setting.
`setcolor`	`graphics.h`	Sets the current drawing color using the palette.
`setdta`	`dos.h`	Sets disk-transfer address.
`setfillpattern`	`graphics.h`	Selects a user-defined fill pattern.
`setfillstyle`	`graphics.h`	Sets the fill pattern and color.
`setgraphbufsize`	`graphics.h`	Changes the size of the internal graphics buffer.
`setgraphmode`	`graphics.h`	Sets the system to graphics mode and clears the screen.
`setjmp`	`setjmp.h`	Sets up for nonlocal goto.
`setlinestyle`	`graphics.h`	Sets the current line width and style.
`setlocale`	`locale.h`	Selects a locale.
`setmem`	`mem.h`	Assigns a value to a range of memory.
`setmode`	`fcntl.h`	Sets mode of an open file.
`setpalette`	`graphics.h`	Changes one palette color.
`setrgbpalette`	`graphics.h`	Allows user to define colors for the IBM 8514.
`settextjustify`	`graphics.h`	Sets text justification for graphics functions.
`settextstyle`	`graphics.h`	Sets the current text characteristics for graphics output.
`setusercharsize`	`graphics.h`	Varies character width and height for stroked fonts.
`setvbuf`	`stdio.h`	Assigns buffering to a stream.
`setverify`	`dos.h`	Sets the state of the verify flag in DOS.
`setviewport`	`graphics.h`	Sets the current viewport for graphics output.
`setvisualpage`	`graphics.h`	Sets the visual graphics page number.
`setwritemode`	`graphics.h`	Sets the writing mode for line drawing in graphics mode.
`signal`	`signal.h`	Specifies signal-handling actions.
`sin, sinl`	`math.h`	Calculates sine.
`sinh, sinhl`	`math.h`	Calculates hyperbolic sine.
`sleep`	`dos.h`	Suspends execution for an interval (seconds).
`sopen`	`fcntl.h`	Opens a shared file.
`sound`	`dos.h`	Turns PC speaker on at specified frequency.
`spawnl, spawnle, spawnlp, spawnlpe, spawnv, spawnve, spawnvp, spawnvpe`	`process.h`	Creates and runs child processes.
`sprintf`	`stdio.h`	Writes formatted output to a string.
`sqrt, sqrtl` 1	`math.h`	Calculates the positive square root.
`srand`	`stdlib.h`	Initializes random number generator.
`sscanf`	`stdio.h`	Scans and formats input from a string.
`stime`	`time.h`	Sets system date and time.
`stpcpy`	`string.h`	Copies one string into another.
`strcat, _fstrcat` 1	`string.h`	Appends one string to another.
`strchr, _fstrchr` 1	`string.h`	Scans a string for the first occurrence of a given character.
`strcmp`	`string.h`	Compares one string to another.
`strcmpi`	`string.h`	Compares one string to another, without case sensitivity.
`strcoll`	`string.h`	Compares two strings.
`strcpy`	`string.h`	Copies one string into another.
`strcspn, _fstrcspn`	`string.h`	Scans a string for the initial segment not containing any subset of a given set of characters.
`strdup, _fstrdup` 1	`string.h`	Copies a string into a newly created location.
`strerror`	`string.h`	Returns a pointer to an error message string.
`strftime` 1	`time.h`	Formats time for output.
`stricmp, _fstricmp` 1	`string.h`	Compares one string to another, without case sensitivity.
`strlen, _fstrlen`	`string.h`	Calculates the length of a string.
`strlwr, _fstrlwr` 1	`string.h`	Converts uppercase letters in a string to lowercase.
`strncat, _fstrncat` 1	`string.h`	Appends a portion of one string to another.
`strncmp, _fstrncmp` 1	`string.h`	Compares a portion of one string to a portion of another.
`strncmpi`	`string.h`	Compares a portion of one string to a portion of another, without case sensitivity.
`strncpy, _fstrncpy`	`stdio.h`	Copies a given number of bytes from one string into another, truncating or padding as necessary.
`strnicmp, _fstrnicmp` 1	`string.h`	Compares a portion of one string to a portion of another, without case sensitivity.
`strnset, _fstrnset` 1	`string.h`	Sets a specified number of characters in a string to a given character.
`strpbrk, _fstrpbrk`	`string.h`	Scans a string for the first occurrence of any character from a given set.
`strrchr, _fstrrchr` 1	`string.h`	Scans a string for the last occurrence of a given character.
`strrev, fstrrev`	`string.h`	Reverses a string.
`strset, _fstrset` 1	`string.h`	Sets all characters in a string to a given character.
`strspn, _fstrspn`	`string.h`	Scans a string for the first segment that is a subset of a given set of characters.
`strstr, _fstrstr` 1	`string.h`	Scans a string for the occurrence of a given substring.
`strtod, _strtold` 1	`stdlib.h`	Convert a string to a double or long double value.
`strtok, _fstrtok` 1	`string.h`	Searches one string for tokens, which are separated by delimiters defined in a second string.
`strtol`	`stdlib.h`	Converts a string to a long value.
`strtoul` 1	`stdlib.h`	Converts a string to an unsigned long in the given radix.
`strupr, _fstrupr`	`string.h`	Converts lowercase letters in a string to uppercase.
`strxfrm`	`string.h`	Transforms a portion of a string.
`swab`	`stdlib.h`	Swaps bytes.
`system`	`stdlib.h`	Issues a DOS command.
`tan, tanl`	`math.h`	Calculates the tangent.
`tanh, tanhl`	`math.h`	Calculates the hyperbolic tangent. Real versions: Complex version:
`tell`	`io.h`	Gets the current position of a file pointer.
`tempnam`	`stdio.h`	Creates a unique file name in specified directory.
`textattr`	`conio.h`	Sets text attributes.
`textbackground`	`conio.h`	Selects new text background color.
`textcolor`	`conio.h`	Selects new character color in text mode.
`textheight`	`graphics.h`	Returns the height of a string in pixels.
`textmode`	`conio.h`	Puts screen in text mode.
`textwidth`	`graphics.h`	Returns the width of a string in pixels.
`time`	`time.h`	Gets time of day.
`timezone`	`time.h`	Contains difference in seconds between local time and GMT.
`tmpfile`	`stdio.h`	Opens a "scratch" file in binary mode.
`tmpnam`	`stdio.h`	Creates a unique file name.
`toascii`	`ctype.h`	Translates characters to ASCII format.
`tolower`	`ctype.h`	Translates characters to lowercase.
`toupper`	`ctype.h`	Translates characters to uppercase.
`tzname`	`time.h`	Array of pointers to time zone names.
`tzset`	`time.h`	Sets value of global variables daylight, timezone, and tzname.
`ultoa`	`stdlib.h`	Converts an unsigned long to a string.
`umask`	`io.h`	Sets file read/write permission mask.
`ungetc`	`stdio.h`	Pushes a character back into input stream.
`ungetch`	`conio.h`	Pushes a character back to the keyboard buffer.
`unixtodos` 2	`dos.h`
`unlink`	`io.h`	Deletes a file.
`unlock`	`io.h`	Releases file-sharing locks.
`utime`	`utime.h`	Sets file time and date.
`va_arg, va_end, va_start`	`stdarg.h`	Implement a variable argument list.
`vfprintf`	`stdio.h`	Writes formatted output to a stream.
`vfscanf`	`stdio.h`	Scans and formats input from a stream.
`vprintf`	`stdarg.h`	Writes formatted output to stdout.
`vscanf`	`stdarg.h`	Scans and formats input from stdin.
`vsprintf`	`stdarg.h`	Writes formatted output to a string.
`vsscanf`	`stdarg.h`	Scans and formats input from a stream.
`wcstombs`	`stdlib.h`	Converts a wchar_t array into a multibyte string.
`wctomb`	`stdlib.h`	Converts wchart code to a multibyte character.
`wherex`	`conio.h`	Gives horizontal cursor position within window.
`wherey`	`conio.h`	Gives vertical cursor position within window.
`window`	`conio.h`	Defines active text mode window.
`write`	`io.h`	Writes to a file.