[linuxjm/LDP_man-pages.git] / release / man3 / strtoul.3

.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date.  The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sun Jul 25 10:54:03 1993 by Rik Faith (faith@cs.unc.edu)
.\" Fixed typo, aeb, 950823
.\" 2002-02-22, joey, mihtjel: Added strtoull()
.\"
.\" Japanese Version Copyright (c) 1999 AKAMATSU, Kazuo
.\"                            and 2006 Akihiro MOTOKI
.\"         all rights reserved.
.\" Translated Thu Jan 31 18:00:00 JST 1999
.\"         by AKAMATSU, Kazuo
.\" Updated & Modified 2006-07-20,
.\"         Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v2.36
.\"
.\" WORD:       base            ´ð¿ô
.\"
.TH STRTOUL 3  2007-07-26 "GNU" "Linux Programmer's Manual"
.SH ̾Á°
strtoul, strtoull, strtouq \- ʸ»úÎó¤ò unsigned long int ¤ËÊÑ´¹¤¹¤ë
.SH ½ñ¼°
.nf
.B #include <stdlib.h>
.sp
.BI "unsigned long int strtoul(const char *" nptr ", char **" endptr \
", int " base );
.sp
.BI "unsigned long long int strtoull(const char *" nptr ", char **" endptr ,
.BI "                                int " base );
.fi
.sp
.in -4n
glibc ¸þ¤±¤Îµ¡Ç½¸¡ºº¥Þ¥¯¥í¤ÎÍ×·ï
.RB ( feature_test_macros (7)
»²¾È):
.in
.sp
.ad l
.BR strtoull ():
XOPEN_SOURCE >= 600 || _BSD_SOURCE || _SVID_SOURCE || _ISOC99_SOURCE; or
.I cc\ -std=c99
.ad b
.SH ÀâÌÀ
.BR strtoul ()
´Ø¿ô¤Ï¡¢ \fInptr\fP ¤Îʸ»úÎó¤ÎºÇ½é¤ÎÉôʬ¤ò¡¢
\fIbase\fP ¤ò´ð¿ô¤È¤·¤Æ
.I "unsigned long int"
¤ËÊÑ´¹¤¹¤ë¡£
¤³¤Î \fIbase\fP ¤Ï 2 ¤«¤é 36 ¤Þ¤Ç¤ÎÃÍ
¤¢¤ë¤¤¤ÏÆÃÊ̤ʰÕÌ£¤ò»ý¤ÄÃÍ 0 ¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
.PP
ʸ»úÎó¤ÎÀèƬ¤Ë¤Ï¡¢Ç¤°Õ¤Î¿ô¤Î¶õÇò¤¬¤¢¤Ã¤Æ¤â¤è¤¯ (¶õÇò¤Ï
.BR ( isspace (3)
¤ÇȽÄꤵ¤ì¤ë) ¡¢¤Þ¤¿¿ô»ú¤ÎľÁ°¤Ë¤Ï \(aq+\(aq ¤« \(aq\-\(aq ¤Î
Éä¹æ¤¬¤¢¤Ã¤Æ¤â¤è¤¤¡£
\fIbase\fP ¤¬ 0 ¤Þ¤¿¤Ï 16 ¤Î¾ì¹ç¤Ë¤Ï¡¢ ʸ»úÎó¤ÎÀèƬ¤Ë "0x" ¤òÃÖ¤¯¤³¤È¤¬
¤Ç¤­¡¢¤½¤Î¾ì¹ç¤Ë¤Ïʸ»úÎó¤Ï 16¿Ê¿ô¤È¤·¤Æ°·¤ï¤ì¤ë¡£
¤³¤ì°Ê³°¤Îʸ»úÎó¤Ç \fIbase\fP ¤¬ 0 ¤Î¾ì¹ç¤Ï¡¢
ʸ»úÎó¤¬ \(aq0\(aq ¤Ç»Ï¤Þ¤ë¤È¤­¤Ï 8¿Ê¿ô¤È¤·¤Æ¡¢
¤½¤ì°Ê³°¤Î¤È¤­¤Ï 10¿Ê¿ô¤È¤·¤Æ°·¤ï¤ì¤ë¡£
.PP
ʸ»úÎó¤Î»Ä¤ê¤ÎÉôʬ¤Ï
.I "unsigned long int"
¤ËÊÑ´¹¤µ¤ì¤ë¤¬¡¢´ð¿ô¤ËÂФ·¤Æ
Í­¸ú¤Ç¤Ê¤¤¿ô»ú¤¬¸½¤ì¤¿»þÅÀ¤ÇÊÑ´¹¤Ï½ªÎ»¤¹¤ë¡£(11¿Ê¿ô°Ê¾å¤Ç¤Ï \(aqA\(aq ¤Ï
Âçʸ»ú¡¦¾®Ê¸»ú¤Ë´Ø¤ï¤é¤º 10 ¤òɽ¤·¡¢ \(aqB\(aq ¤Ï 11 ¤òɽ¸½¤·,
°Ê²¼Æ±Íͤˡ¢ \(aqZ\(aq ¤Ï 35 ¤òɽ¤¹¡£)
.PP
\fIendptr\fP ¤¬¥Ì¥ëÃÍ (NULL) ¤Ç¤Ê¤¤¾ì¹ç¡¢
.BR strtoul ()
¤ÏºÇ½é¤ËÉÔÀµ¤Êʸ»ú¤¬¸½¤ì¤¿¥¢¥É¥ì¥¹¤ò
\fI*endptr\fP ¤Ë³ÊǼ¤·¤Æ¤¤¤ë¡£
ʸ»úÎó¤ËÍ­¸ú¤Ê¿ô»ú¤¬¤Ò¤È¤Ä¤â¤Ê¤±¤ì¤Ð¡¢
.BR strtoul ()
¤Ï \fInptr\fP
¤Î¸µ¤ÎÃͤò \fI*endptr\fP ¤ËÂåÆþ¤¹¤ë(¤½¤·¤Æ 0 ¤òÊÖ¤¹)¡£
Æäˡ¢ \fI*nptr\fP ¤¬ \(aq\\0\(aq °Ê³°¤Ç¡¢ÊÖ¤µ¤ì¤¿ \fI**endptr\fP ¤¬
\(aq\\0\(aq ¤Ê¤é¤Ð¡¢Ê¸»úÎóÁ´ÂΤ¬Í­¸ú¤À¤Ã¤¿¤³¤È¤Ë¤Ê¤ë¡£
.PP
.BR strtoull ()
´Ø¿ô¤Ï
.BR strtoul ()
´Ø¿ô¤ÈƱÍͤÀ¤¬¡¢
.I "unsigned long long int"
·¿¤ÎÃͤòÊÖ¤¹¡£
.SH ÊÖ¤êÃÍ
.BR strtoul ()
´Ø¿ô¤ÏÊÑ´¹·ë²Ì¤òÊÖ¤¹¡£Ê¸»úÎ󤬥ޥ¤¥Ê¥¹Éä¹æ¤«¤é»Ï¤Þ¤Ã¤Æ¤¤¤¿¾ì
¹ç¤Ï¡¢(Éä¹æȿžÁ°¤ÎÃͤ¬¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤·¤Æ¤¤¤Ê¤±¤ì¤Ð) ÊÑ´¹·ë²Ì¤òÉä¹æȿž¤·¤¿
Ãͤò unsigned ·¿¤ÇÊÖ¤¹¡£ÊÑ´¹¤Ç¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤¬È¯À¸¤·¤¿¾ì¹ç¤Ï
.B ULONG_MAX
¤òÊÖ¤·¡¢
.I errno
¤Ë
.B ERANGE
¤òÀßÄꤹ¤ë¡£
.RB ( ULONG_MAX
¤ò
.B ULLONG_MAX
¤ÈÆɤßÂؤ¨¤ì¤Ð)
.BR strtoull ()
¤Ï
.BR strtoul ()
¤ÈÁ´¤¯Æ±¤¸¤Ç¤¢¤ë¡£
.SH ¥¨¥é¡¼
.TP
.B EINVAL
(C99 ¤Ë¤Ï¤Ê¤¤)
Í¿¤¨¤é¤ì¤¿
.I base
¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤Ê¤¤ÃͤǤ¢¤ë¡£
.TP
.B ERANGE
ʸ»úÎ󤬿ôÃͤÎɽ¸½Èϰϳ°¤Ç¤¢¤ë¡£
.LP
¼ÂÁõ¤Ë¤è¤Ã¤Æ¤Ï¡¢Á´¤¯ÊÑ´¹¤¬¹Ô¤ï¤ì¤Ê¤«¤Ã¤¿¾ì¹ç(Á´¤¯¿ô»ú¤¬¸½¤ì¤º¡¢
0 ¤¬ÊÖ¤µ¤ì¤ë)¡¢\fIerrno\fP ¤Ë \fBEINVAL\fP ¤¬¥»¥Ã¥È¤µ¤ì¤ë¤«¤â¤·¤ì¤Ê¤¤¡£
.SH ½àµò
.BR strtoul ()
¤Ï SVr4, C89, C99 ¤È POSIX-2001 ¤Ë½àµò¤·¤Æ¤¤¤ë¡£
.BR strtoull ()
¤Ï C99 ¤È POSIX.1-2001 ¤Ë½àµò¤·¤Æ¤¤¤ë¡£
.SH Ãí°Õ
.B strtoul ()
¤«¤é¤ÏÀ®¸ù¡¢¼ºÇԤɤÁ¤é¤Î¾ì¹ç¤Ç¤â 0 ¤ä
.B LONG_MAX
.RB ( strtoull ()
¤Ç¤Ï
.BR LLONG_MAX )
¤¬ÊÖ¤ë²ÄǽÀ­¤¬¤¢¤ë¤Î¤Ç¡¢
¥×¥í¥°¥é¥à¤Ï´Ø¿ô¤ò¸Æ¤Ó½Ð¤¹Á°¤Ë
.I errno
¤ò 0 ¤ËÀßÄꤷ¡¢¸Æ¤Ó½Ð¤·¸å¤Ë
.I errno
¤¬ 0 °Ê³°¤ÎÃͤ«¤É¤¦¤«¤ò³Îǧ¤·¥¨¥é¡¼¤¬È¯À¸¤·¤¿¤«¤É¤¦¤«¤òȽÃǤ¹¤ë
ɬÍפ¬¤¢¤ë¡£

"C" °Ê³°¤Î¥í¥±¡¼¥ë¤Î¾ì¹ç¡¢¤½¤Î¾¤Îʸ»úÎó¤â¼õ¤±ÉÕ¤±¤é¤ì¤ë¤«¤â¤·¤ì¤Ê¤¤¡£
(Î㤨¤Ð¡¢¸½ºß¤Î¥í¥±¡¼¥ë¤Î 1000 Ëè¤Î¶èÀÚ¤êʸ»ú¤ËÂбþ¤·¤Æ¤¤¤ë¤«¤â¤·¤ì¤Ê¤¤¡£)
.LP
BSD ¤Ë¤Ï¡¢
.sp
.in +4n
.nf
.BI "u_quad_t strtouq(const char *" nptr ", char **" endptr ", int " base );
.sp
.in -4n
.fi
¤È¤¤¤¦´°Á´¤ËƱÍͤÎÄêµÁ¤ò»ý¤Ä´Ø¿ô¤¬¤¢¤ë¡£
»ÈÍÑÃæ¤Î¥¢¡¼¥­¥Æ¥¯¥Á¥ã¤Î¥ï¡¼¥ÉĹ¼¡Âè¤Ç¤¢¤ë¤¬¡¢¤³¤Î´Ø¿ô¤Ï
.BR strtoull ()
¤ä
.BR stroul ()
¤ÈÅù²Á¤Ê¾ì¹ç¤â¤¢¤ê¤¨¤ë¡£

Éé¤ÎÃͤâÀµÅö¤ÊÆþÎϤȤߤʤµ¤ì¡¢¥¨¥é¡¼¤â¤Ê¤¯¡¢
Âбþ¤¹¤ë
.I "unsigned long int"
·¿¤ÎÃͤËÊÑ´¹¤µ¤ì¤ë¡£
.SH Îã
.BR strtol (3)
¤Î¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸¤ÎÎã¤ò»²¾È¡£
¤³¤Î¥Ú¡¼¥¸¤ÇÀâÌÀ¤·¤¿´Ø¿ô¤Î»ÈÍÑÊýË¡¤âƱÍͤǤ¢¤ë¡£
.SH ´ØÏ¢¹àÌÜ
.BR atof (3),
.BR atoi (3),
.BR atol (3),
.BR strtod (3),
.BR strtol (3)