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-This directory contains source for several test programs:
-
-dt is for conversion to/from double; it permits input of pairs of
-32-bit hex integers as #hhhhhhhh hhhhhhhh (i.e., the initial '#'
-indicates hex input).  No initial # ==> decimal input.
-After the input number is an optional : mode ndigits
-(colon, and decimal integers for parameters "mode" and "ndigits"
-to gdtoa).
-
-Qtest, ddtest, dtest, ftest, xLtest and xtest are for conversion to/from
-
-	f	IEEE single precision
-	d	IEEE double precision
-	xL	IEEE extended precision, as on Motorola 680x0 chips
-	x	IEEE extended precision, as on Intel 80x87 chips or
-			software emulation of Motorola 680x0 chips
-	Q	quad precision, as on Sun Sparc chips
-	dd	double double, pairs of IEEE double numbers
-		whose sum is the desired value
-
-They're all similar, except for the precision.  They test both
-directed roundings and interval input (the strtoI* routines).
-Lines that begin with "r" specify or interrogate the desired rounding
-direction:
-
-	0 = toward 0
-	1 = nearest (default)
-	2 = toward +Infinity
-	3 = toward -Infinity
-
-These are the FPI_Round_* values in gdota.h.  The "r" value is sticky:
-it stays in effect til changed.  To change the value, give a line that
-starts with r followed by 0, 1, 2, or 3.  To check the value, give "r"
-by itself.
-
-Lines that begin with n followed by a number specify the ndig
-argument for subsequent calls to the relevant g_*fmt routine.
-
-Lines that start with # followed by the appropriate number of
-hexadecimal strings (see the comments) give the big-endian
-internal representation of the desired number.
-
-When routines Qtest, xLtest, and xtest are used on machines whose
-long double is of type "quad" (for Qtest) or "extended" (for x*test),
-they try to print with %Lg as another way to show binary values.
-
-Program ddtest also accepts (white-space separated) pairs of decimal
-input numbers; it converts both with strtod and feeds the result
-to g_ddfmt.
-
-Program dItest exercises strtodI and strtoId.
-
-Programs dItestsi and ddtestsi are for testing the sudden-underflow
-logic (on double and double-double conversions).
-
-Program strtodt tests strtod on some hard cases (in file testnos3)
-posted by Fred Tydeman to comp.arch.arithmetic on 26 Feb. 1996.
-
-These are simple test programs, not meant for exhaustive testing,
-but for manually testing "interesting" cases.  Paxson's testbase
-is good for more exhaustive testing, in part with random inputs.