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-.\" Copyright (c) 1990, 1991, 1993
-.\" The Regents of the University of California. All rights reserved.
-.\"
-.\" This code is derived from software contributed to Berkeley by
-.\" the American National Standards Committee X3, on Information
-.\" Processing Systems.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by the University of
-.\" California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\" may be used to endorse or promote products derived from this software
-.\" without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" @(#)strtod.3 8.1 (Berkeley) 6/4/93
-.\"
-.Dd June 4, 1993
-.Dt STRTOD 3
-.Os
-.Sh NAME
-.Nm strtod
-.Nd convert
-.Tn ASCII
-string to double
-.Sh SYNOPSIS
-.Fd #include <stdlib.h>
-.Ft double
-.Fn strtod "const char *nptr" "char **endptr"
-.Sh DESCRIPTION
-The
-.Fn strtod
-function converts the initial portion of the string
-pointed to by
-.Fa nptr
-to
-.Em double
-representation.
-.Pp
-The expected form of the string is an optional plus (``+'') or minus
-sign (``\-'') followed by a sequence of digits optionally containing
-a decimal-point character, optionally followed by an exponent.
-An exponent consists of an ``E'' or ``e'', followed by an optional plus
-or minus sign, followed by a sequence of digits.
-.Pp
-Leading white-space characters in the string (as defined by the
-.Xr isspace 3
-function) are skipped.
-.Sh RETURN VALUES
-The
-.Fn strtod
-function returns the converted value, if any.
-.Pp
-If
-.Fa endptr
-is not
-.Dv NULL ,
-a pointer to the character after the last character used
-in the conversion is stored in the location referenced by
-.Fa endptr .
-.Pp
-If no conversion is performed, zero is returned and the value of
-.Fa nptr
-is stored in the location referenced by
-.Fa endptr .
-.Pp
-If the correct value would cause overflow, plus or minus
-.Dv HUGE_VAL
-is returned (according to the sign of the value), and
-.Dv ERANGE
-is stored in
-.Va errno .
-If the correct value would cause underflow, zero is
-returned and
-.Dv ERANGE
-is stored in
-.Va errno .
-.Sh ERRORS
-.Bl -tag -width [ERANGE]
-.It Bq Er ERANGE
-Overflow or underflow occurred.
-.Sh SEE ALSO
-.Xr atof 3 ,
-.Xr atoi 3 ,
-.Xr atol 3 ,
-.Xr strtol 3 ,
-.Xr strtoul 3
-.Sh STANDARDS
-The
-.Fn strtod
-function
-conforms to
-.St -ansiC .
-.Sh AUTHORS
-The author of this software is David M. Gay.
-.Pp
-Copyright (c) 1991 by AT&T.
-.Pp
-Permission to use, copy, modify, and distribute this software for any
-purpose without fee is hereby granted, provided that this entire notice
-is included in all copies of any software which is or includes a copy
-or modification of this software and in all copies of the supporting
-documentation for such software.
-.Pp
-THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
-WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR AT&T MAKES ANY
-REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
-OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
-.Pp
-Contact your vendor for a free copy of the source code to
-.Fn strtod
-and accompanying functions.
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