386BSD 0.1 development

Work on file usr/src/lib/libc/stdlib/strtod.3
Work on file usr/src/lib/libc/stdlib/strtol.3

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1

diff --git a/usr/src/lib/libc/stdlib/strtod.3 b/usr/src/lib/libc/stdlib/strtod.3
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+.\" Copyright (c) 1990, 1991 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   5.3 (Berkeley) 6/29/91
+.\"
+.Dd June 29, 1991
+.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 BUGS
+This manual page represents intent instead of actual practice.
+The
+.Fn strtod
+function is not currently available.

diff --git a/usr/src/lib/libc/stdlib/strtol.3 b/usr/src/lib/libc/stdlib/strtol.3
new file mode 100644 (file)
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+.\" Copyright (c) 1990, 1991 The Regents of the University of California.
+.\" All rights reserved.
+.\"
+.\" This code is derived from software contributed to Berkeley by
+.\" Chris Torek and 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.
+.\"
+.\"     @(#)strtol.3   5.3 (Berkeley) 6/29/91
+.\"
+.Dd June 29, 1991
+.Dt STRTOL 3
+.Os
+.Sh NAME
+.Nm strtol
+.Nd convert string value to a long integer
+.Sh SYNOPSIS
+.Fd #include <stdlib.h>
+.Fd #include <limits.h>
+.Ft long
+.Fn strtol "char *nptr" "char **endptr" "int base"
+.Sh DESCRIPTION
+The
+.Fn strtol
+function
+converts the string in
+.Fa nptr
+to a
+.Em long
+value according to the given
+.Fa base ,
+which must be between 2 and 36 inclusive,
+or be the special value 0.
+.Pp
+The string may begin with an arbitrary amount of white space
+(as determined by
+.Xr isspace 3 )
+followed by a single optional
+.Ql +
+or
+.Ql -
+sign.
+If
+.Fa base
+is zero or 16,
+the string may then include a
+.Ql 0x
+prefix,
+and the number will be read in base 16; otherwise, a zero
+.Fa base
+is taken as 10 (decimal) unless the next character is
+.Ql 0 ,
+in which case it is taken as 8 (octal).
+.Pp
+The remainder of the string is converted to a
+.Em long
+value in the obvious manner,
+stopping at the first character which is not a valid digit
+in the given base.
+(In bases above 10, the letter
+.Ql A
+in either upper or lower case
+represents 10,
+.Ql B
+represents 11, and so forth, with
+.Ql Z
+representing 35.)
+.Pp
+If
+.Fa endptr
+is non nil,
+.Fn strtol
+stores the address of the first invalid character in
+.Fa *endptr .
+If there were no digits at all, however,
+.Fn strtol
+stores the original value of
+.Fa nptr
+in
+.Fa *endptr .
+(Thus, if
+.Fa *nptr
+is not
+.Ql \e0
+but
+.Fa **endptr
+is
+.Ql \e0
+on return, the entire string was valid.)
+.Sh RETURN VALUES
+The
+.Fn strtol
+function
+returns the result of the conversion,
+unless the value would underflow or overflow.
+If an underflow occurs,
+.Fn strtol
+returns
+.Dv LONG_MIN .
+If an overflow occurs,
+.Fn strtol
+returns
+.Dv LONG_MAX .
+In both cases,
+.Va errno
+is set to
+.Er ERANGE .
+.Sh ERRORS
+.Bl -tag -width [ERANGE]
+.It Bq Er ERANGE
+The given string was out of range; the value converted has been clamped.
+.El
+.Sh SEE ALSO
+.Xr atof 3 ,
+.Xr atoi 3 ,
+.Xr atol 3 ,
+.Xr strtod 3 ,
+.Xr strtoul 3
+.Sh STANDARDS
+The
+.Fn strtol
+function
+conforms to
+.St -ansiC .
+.Sh BUGS
+Ignores the current locale.