C Language Index
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data conversion
functions Convert between numbers and strings
data-type ranges Constants defining data-type ranges
data types List of data types and their ranges
__DATE__ Date of compilation
daylight Daylight-savings-time variable
DBL_... Double range constants
default Default case in a switch statement
_DEFAULTMODE Default video mode
#define Macro definition
defined Test preprocessor identifiers
dieeetomsbin Convert IEEE double to MS binary double
difftime Find the difference between two times
directives,
preprocessor Conditional compilation, macros, etc.
directory control
functions Functions for manipulating directories
_disable Disable interrupts
_DISK_FORMAT Format specified disk track
diskfree_t Disk free-space information structure
diskinfo_t Disk information structure
_DISK_READ Read disk sectors into memory
_DISK_RESET Force disk controller to do a hard-reset
_DISK_STATUS Get status of last disk operation
_DISK_VERIFY Check specified disk sectors
_DISK_WRITE Write data to disk sector
_displaycursor Set cursor toggle for graphics functions
div Compute quotient and remainder of two integers
div_t Quotient/remainder structure
dmsbintoieee Convert MS binary double value to IEEE doubles
do do...while statement
DOMAIN Argument outside domain of function (matherr)
DOS calls Functions for accessing DOS resources
_dos_allocmem Allocate a block of memory (DOS service 0x48)
_dos_close Close a file (INT 0x3E)
_dos_creat Create a file (INT 0x3C)
_dos_creatnew Create a file (INT 0x5B)
_doserrno MS-DOS error code
dosdate_t Current date structure
DOSERROR DOS extended error structure
dosexterr Get register values returned by INT 0x59
_dos_findfirst Find file with specified attributes (INT 0x4E)
_dos_findnext Find next file with specified attributes
(INT 0x4F)
_dos_freemem Release a block of memory (INT 0x49)
_dos_getdate Get current system date (INT 0x2A)
_dos_getdiskfree Get disk information (INT 0x36)
_dos_getdrive Get current disk drive (INT 0x19)
_dos_getfileattr Get current attributes of file or directory
(INT 0x43)
_dos_getftime Get date and time of a file (INT 0x57)
_dos_gettime Get current system time (INT 0x2C)
_dos_getvect Get current value of interrupt vector (INT 0x35)
_dos_keep Install TSR program in memory (INT 0x31)
DOS_MODE Value for _osmode
_dos_open Open file (INT 0x3D)
_dos_read Read data from a file (INT 0x3F)
_dos_setblock Change size of segment (INT 0x4A)
_dos_setdate Set current system date (INT 0x2B)
_dos_setdrive Set default drive (INT 0x0E)
_dos_setfileattr Set attributes of file or directory (INT 0x43)
_dos_setftime Set date and time for a file (INT 0x57)
_dos_settime Set current system time (INT 0x2D)
_dos_setvect Set current value of interrupt vector (INT 0x25)
dostime_t Current time structure
_dos_write Write buffer to file (INT 0x40)
double Double-precision floating-point data type
dup Create second handle for open file
dup2 Reassign a file handle