Guardian C Library Calls Reference Manual

2-6 128833—Guardian TNS C Library Calls Reference Manual

Summary of Library Header Files

Here are the macros defined for use in fcntl. The meanings of these macros are

described in the discussion of fcntl in Section 3, “Reference to Library Calls”:

F_FLUSH F_GETDTYPE F_GETFCODE F_GETFL

F_GETFN F_OFF F_ON F_SETBUF

F_SETFL F_SETTAB

The header floath defines object-like macros that describe the representation of floating-

point numbers in the C language. The interpretation and significance of these macros are

described in the ISO/ANSI C standard.

Here are the macros that describe the floating-point type float. Following each macro

name is its defined value.

Note. The fcntlh header is not specified by the ISO/ANSI C standard. The header is specified

by the POSIX.1 and XPG4 standards.

FLT_DIG

FLT_EPSILON

2.7e-17

FLT_MANT_DIG

FLT_MAX

1.15792e77

FLT_MAX_10_EXP

FLT_MIN

8.63617e-78

FLT_MIN_10_EXP

(-77)

FLT_MIN_EXP

(-254)

FLT_MAX_EXP

(256)

FLT_RADIX

FLT_ROUNDS