strtoul.h File Reference

definition of the strtoul() and strtoull() functions More...

#include <nlibc.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>

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Defines
#define	strtoull(nptr, endptr, base)   strtoul(nptr, endptr, base)
Functions
unsigned long	strtoul (const char *nptr, char **endptr, int base)
	Convert a string to an unsigned long integer. .

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Detailed Description

definition of the strtoul() and strtoull() functions

SOURCE

NetBSD

strtoul.c,v 1.15 1999/09/20 04:39:42 lukem Exp

COPYRIGHT

Copyright (c) 1990, 1993 The Regents of the University of California. All rights reserved.

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.

Definition in file strtoul.h.

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Define Documentation

#define strtoull (  nptr, endptr, base   )     strtoul(nptr, endptr, base)

Definition at line 192 of file strtoul.h.

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Function Documentation

unsigned long strtoul (  const char *  nptr, char **  endptr, int  base )

Convert a string to an unsigned long integer. . NAME strtoul - convert a string to an unsigned long integer. strtoull - convert a string to a unsigned long long integer. SYNOPSIS #include <stdlib.h> unsigned long int strtoul(const char *nptr, char **endptr, int base); unsigned long long int strtoull(const char * restrict nptr, char ** restrict endptr, int base); DESCRIPTION The strtoul() function converts the string in nptr to a long integer value according to the given base, which must be between 2 and 36 inclusive, or be the special value 0. The string must begin with an arbitrary amount of white space (as determined by isspace(3)) followed by a single optional `+' or `-' sign. If base is zero or 16, the string may then include a `0x' prefix, and the number will be read in base 16; otherwise, a zero base is taken as 10 (decimal) unless the next character is `0', in which case it is taken as 8 (octal). The remainder of the string is converted to a long int value in the obvious manner, stopping at the first charac­ ter which is not a valid digit in the given base. (In bases above 10, the letter `A' in either upper or lower case represents 10, `B' represents 11, and so forth, with `Z' representing 35.) If endptr is not NULL, strtoul() stores the address of the first invalid character in *endptr. If there were no dig­ its at all, strtoul() stores the original value of nptr in endptr (and returns 0). In particular, if *nptr is not `\0' but **endptr is `\0' on return, the entire string is valid. RETURN VALUE The strtoul() function returns the result of the conver­ sion, unless the value would underflow or overflow. If an underflow occurs, strtoul() returns LONG_MIN. If an over­ flow occurs, strtoul() returns LONG_MAX. In both cases, errno is set to ERANGE. ERRORS ERANGE The given string was out of range; the value con­ verted has been clamped. IMPLEMENTATION for APEnext: done Ignores `locale' stuff. Assumes that the upper and lower case alphabets and digits are each contiguous. strtoull() is identical to strtoul() since long and long long have the same size.

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