NAME

limits − operating system magnitude limits

DESCRIPTION

The header file <limits.h> is a list of magnitude limitations imposed by the Titan 1500/3000 operating system. 

ARG_MAX20480/∗ max length of arguments to exec ∗/
CHAR_BIT8/∗ # of bits in a "char" ∗/
CHAR_MAX127/∗ max integer value of a "char" ∗/
CHAR_MIN-128/∗ min integer value of a "char" ∗/
CHILD_MAX50/∗ max # of processes per user id ∗/
CLK_TCK100/∗ # of clock ticks per second ∗/
DBL_DIG16/∗ digits of precision of a "double" ∗/
DBL_MAX0d7fefffffffffffff/∗ Approx. 1.7976931348623157e+308 ∗/
/∗ Maximum decimal value of a "double"∗/
DBL_MIN0d0010000000000000/∗ Approx. 2.2250738585072015E-308 ∗/
/∗ Minimum decimal value of a "double"∗/
FCHR_MAX2147483647/∗ max size of a file in bytes ∗/
FLT_DIG7/∗ digits of precision of a "float" ∗/
FLT_MAX0d47efffffe0000000/∗ Approx. 3.40282346638528860e+38 ∗/
/∗ Maximum decimal value of a "float"∗/
FLT_MIN0d3810000000000000/∗ Approx. 1.1754943508222875e-38 ∗/
/∗ Minimum decimal value of a "float"∗/
HUGE_VAL(DBL_MAX)/∗error value returned by Math lib ∗/
INT_MAX2147483647/∗ max decimal value of an "int" ∗/
INT_MIN-2147483648/∗ min decimal value of an "int" ∗/
LINK_MAX1000/∗ max # of links to a single file ∗/
LONG_MAX2147483647/∗ max decimal value of a "long" ∗/
LONG_MIN-2147483648/∗ min decimal value of a "long" ∗/
NAME_MAX14/∗ max # of characters in a file name ∗/
OPEN_MAX64/∗ max # of files a process can have open ∗/
PASS_MAX8/∗ max # of characters in a password ∗/
PATH_MAX1024/∗ max # of characters in a path name ∗/
PID_MAX30000/∗ max value for a process ID ∗/
PIPE_BUF4096/∗ max # bytes atomic in write to a pipe ∗/
PIPE_MAX32768/∗ max # bytes written to a pipe in a write ∗/
SHRT_MAX32767/∗ max decimal value of a "short" ∗/
SHRT_MIN-32768/∗ min decimal value of a "short" ∗/
STD_BLK1024/∗ # bytes in a physical I/O block ∗/
SYS_NMLN9/∗ # of chars in uname-returned strings ∗/
UID_MAX60000/∗ max value for a user or group ID ∗/
USI_MAX4294967295/∗ max decimal value of an "unsigned" ∗/
WORD_BIT32/∗ # of bits in a "word" or "int" ∗/

September 02, 1992