glibc/stdio-common/printf_size.c
Ulrich Drepper 77fe0b9cd8 Update.
2002-02-25  Ulrich Drepper  <drepper@redhat.com>

	* assert/assert-perr.c: Use INTUSE to reference functions and variables
	inside libc itself.  Ise INTDEF and INTDEF2 to define appropriate
	aliases.  Add prototypes for the new aliases.
	* assert/assert.c: Likewise.
	* include/libc-symbols.h: Likewise.
	* include/stdio.h: Likewise.
	* include/netinet/in.h: Likewise.
	* include/rpc/auth.h: Likewise.
	* include/rpc/auth_unix.h: Likewise.
	* include/rpc/key_prot.h: Likewise.
	* include/rpc/pmap_prot.h: Likewise.
	* include/rpc/pmap_rmt.h: Likewise.
	* include/rpc/rpc_msg.h: Likewise.
	* include/rpc/xdr.h: Likewise.
	* inet/gethstbyad_r.c: Likewise.
	* inet/gethstbynm2_r.c: Likewise.
	* inet/gethstbynm_r.c: Likewise.
	* inet/gethstent_r.c: Likewise.
	* inet/in6_addr.c: Likewise.
	* libio/__fpurge.c: Likewise.
	* libio/filedoalloc.c: Likewise.
	* libio/fileops.c: Likewise.
	* libio/ftello.c: Likewise.
	* libio/ftello64.c: Likewise.
	* libio/genops.c: Likewise.
	* libio/iofclose.c: Likewise.
	* libio/iofdopen.c: Likewise.
	* libio/iofflush.c: Likewise.
	* libio/iofflush_u.c: Likewise.
	* libio/iofgetpos.c: Likewise.
	* libio/iofgetpos64.c: Likewise.
	* libio/iofgets.c: Likewise.
	* libio/iofgets_u.c: Likewise.
	* libio/iofopen.c: Likewise.
	* libio/iofopncook.c: Likewise.
	* libio/iofputs.c: Likewise.
	* libio/iofread.c: Likewise.
	* libio/iofread_u.c: Likewise.
	* libio/iofsetpos.c: Likewise.
	* libio/iofsetpos64.c: Likewise.
	* libio/ioftell.c: Likewise.
	* libio/iofwrite.c: Likewise.
	* libio/iogetline.c: Likewise.
	* libio/iogets.c: Likewise.
	* libio/iogetwline.c: Likewise.
	* libio/iolibio.h: Likewise.
	* libio/iopadn.c: Likewise.
	* libio/iopopen.c: Likewise.
	* libio/ioseekoff.c: Likewise.
	* libio/ioseekpos.c: Likewise.
	* libio/iosetbuffer.c: Likewise.
	* libio/iosetvbuf.c: Likewise.
	* libio/ioungetc.c: Likewise.
	* libio/ioungetwc.c: Likewise.
	* libio/iovdprintf.c: Likewise.
	* libio/iovsprintf.c: Likewise.
	* libio/iovsscanf.c: Likewise.
	* libio/libioP.h: Likewise.
	* libio/memstream.c: Likewise.
	* libio/obprintf.c: Likewise.
	* libio/oldfileops.c: Likewise.
	* libio/oldiofclose.c: Likewise.
	* libio/oldiofdopen.c: Likewise.
	* libio/oldiofgetpos.c: Likewise.
	* libio/oldiofgetpos64.c: Likewise.
	* libio/oldiofopen.c: Likewise.
	* libio/oldiofsetpos.c: Likewise.
	* libio/oldiofsetpos64.c: Likewise.
	* libio/oldiopopen.c: Likewise.
	* libio/oldstdfiles.c: Likewise.
	* libio/putc.c: Likewise.
	* libio/setbuf.c: Likewise.
	* libio/setlinebuf.c: Likewise.
	* libio/stdfiles.c: Likewise.
	* libio/stdio.c: Likewise.
	* libio/strops.c: Likewise.
	* libio/vasprintf.c: Likewise.
	* libio/vscanf.c: Likewise.
	* libio/vsnprintf.c: Likewise.
	* libio/vswprintf.c: Likewise.
	* libio/wfiledoalloc.c: Likewise.
	* libio/wfileops.c: Likewise.
	* libio/wgenops.c: Likewise.
	* libio/wstrops.c: Likewise.
	* malloc/mtrace.c: Likewise.
	* misc/error.c: Likewise.
	* misc/syslog.c: Likewise.
	* nss/getXXbyYY_r.c: Likewise.
	* nss/getXXent_r.c: Likewise.
	* nss/hosts-lookup.c: Likewise.
	* stdio-common/getw.c
	* stdio-common/printf-prs.c: Likewise.
	* stdio-common/printf_fp.c: Likewise.
	* stdio-common/printf_size.c: Likewise.
	* stdio-common/putw.c: Likewise.
	* stdio-common/scanf.c: Likewise.
	* stdio-common/sprintf.c: Likewise.
	* stdio-common/tmpfile64.c: Likewise.
	* stdio-common/vfprintf.c: Likewise.
	* stdio-common/vfscanf.c: Likewise.
	* stdlib/strfmon.c: Likewise.
	* sunrpc/auth_des.c: Likewise.
	* sunrpc/auth_none.c: Likewise.
	* sunrpc/auth_unix.c: Likewise.
	* sunrpc/authdes_prot.c: Likewise.
	* sunrpc/authuxprot.c: Likewise.
	* sunrpc/clnt_perr.c: Likewise.
	* sunrpc/clnt_raw.c: Likewise.
	* sunrpc/clnt_tcp.c: Likewise.
	* sunrpc/clnt_udp.c: Likewise.
	* sunrpc/clnt_unix.c: Likewise.
	* sunrpc/key_call.c: Likewise.
	* sunrpc/key_prot.c: Likewise.
	* sunrpc/openchild.c: Likewise.
	* sunrpc/pm_getmaps.c: Likewise.
	* sunrpc/pm_getport.c: Likewise.
	* sunrpc/pmap_clnt.c: Likewise.
	* sunrpc/pmap_prot.c: Likewise.
	* sunrpc/pmap_prot2.c: Likewise.
	* sunrpc/pmap_rmt.c: Likewise.
	* sunrpc/rpc_cmsg.c: Likewise.
	* sunrpc/rpc_prot.c: Likewise.
	* sunrpc/svc_authux.c: Likewise.
	* sunrpc/svc_raw.c: Likewise.
	* sunrpc/svc_simple.c: Likewise.
	* sunrpc/svc_tcp.c: Likewise.
	* sunrpc/svc_udp.c: Likewise.
	* sunrpc/svc_unix.c: Likewise.
	* sunrpc/xdr.c: Likewise.
	* sunrpc/xdr_array.c: Likewise.
	* sunrpc/xdr_mem.c: Likewise.
	* sunrpc/xdr_rec.c: Likewise.
	* sunrpc/xdr_ref.c: Likewise.
	* sunrpc/xdr_stdio.c: Likewise.
	* sysdeps/generic/_strerror.c: Likewise.
	* sysdeps/generic/printf_fphex.c: Likewise.
	* sysdeps/generic/tmpfile.c: Likewise.
	* sysdeps/gnu/errlist.awk: Likewise.
	* sysdeps/gnu/errlist.c: Likewise.

	* libio/Makefile (routines): Remove iosprint.
	* libio/iosprintf.c: Removed
2002-02-26 01:45:59 +00:00

267 lines
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/* Print size value using units for orders of magnitude.
Copyright (C) 1997,1998,1999,2000,2001,2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
Based on a proposal by Larry McVoy <lm@sgi.com>.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <ctype.h>
#include <ieee754.h>
#include <math.h>
#include <printf.h>
#ifdef USE_IN_LIBIO
# include <libioP.h>
#else
# include <stdio.h>
#endif
/* This defines make it possible to use the same code for GNU C library and
the GNU I/O library. */
#ifdef USE_IN_LIBIO
# define PUT(f, s, n) _IO_sputn (f, s, n)
# define PAD(f, c, n) (wide ? _IO_wpadn (f, c, n) : INTUSE(_IO_padn) (f, c, n))
/* We use this file GNU C library and GNU I/O library. So make
names equal. */
# undef putc
# define putc(c, f) (wide \
? (int)_IO_putwc_unlocked (c, f) : _IO_putc_unlocked (c, f))
# define size_t _IO_size_t
# define FILE _IO_FILE
#else /* ! USE_IN_LIBIO */
# define PUT(f, s, n) fwrite (s, 1, n, f)
# define PAD(f, c, n) __printf_pad (f, c, n)
ssize_t __printf_pad __P ((FILE *, char pad, int n)); /* In vfprintf.c. */
#endif /* USE_IN_LIBIO */
/* Macros for doing the actual output. */
#define outchar(ch) \
do \
{ \
register const int outc = (ch); \
if (putc (outc, fp) == EOF) \
return -1; \
++done; \
} while (0)
#define PRINT(ptr, wptr, len) \
do \
{ \
register size_t outlen = (len); \
if (len > 20) \
{ \
if (PUT (fp, wide ? (const char *) wptr : ptr, outlen) != outlen) \
return -1; \
ptr += outlen; \
done += outlen; \
} \
else \
{ \
if (wide) \
while (outlen-- > 0) \
outchar (*wptr++); \
else \
while (outlen-- > 0) \
outchar (*ptr++); \
} \
} while (0)
#define PADN(ch, len) \
do \
{ \
if (PAD (fp, ch, len) != len) \
return -1; \
done += len; \
} \
while (0)
/* Prototype for helper functions. */
extern int __printf_fp (FILE *fp, const struct printf_info *info,
const void *const *args);
int
printf_size (FILE *fp, const struct printf_info *info, const void *const *args)
{
/* Units for the both formats. */
#define BINARY_UNITS " kmgtpezy"
#define DECIMAL_UNITS " KMGTPEZY"
static const char units[2][sizeof (BINARY_UNITS)] =
{
BINARY_UNITS, /* For binary format. */
DECIMAL_UNITS /* For decimal format. */
};
const char *tag = units[isupper (info->spec) != 0];
int divisor = isupper (info->spec) ? 1000 : 1024;
/* The floating-point value to output. */
union
{
union ieee754_double dbl;
union ieee854_long_double ldbl;
}
fpnum;
const void *ptr = &fpnum;
int negative = 0;
/* "NaN" or "Inf" for the special cases. */
const char *special = NULL;
const wchar_t *wspecial = NULL;
struct printf_info fp_info;
int done = 0;
int wide = info->wide;
/* Fetch the argument value. */
#ifndef __NO_LONG_DOUBLE_MATH
if (info->is_long_double && sizeof (long double) > sizeof (double))
{
fpnum.ldbl.d = *(const long double *) args[0];
/* Check for special values: not a number or infinity. */
if (__isnanl (fpnum.ldbl.d))
{
special = "nan";
wspecial = L"nan";
negative = 0;
}
else if (__isinfl (fpnum.ldbl.d))
{
special = "inf";
wspecial = L"inf";
negative = fpnum.ldbl.d < 0;
}
else
while (fpnum.ldbl.d >= divisor && tag[1] != '\0')
{
fpnum.ldbl.d /= divisor;
++tag;
}
}
else
#endif /* no long double */
{
fpnum.dbl.d = *(const double *) args[0];
/* Check for special values: not a number or infinity. */
if (__isnan (fpnum.dbl.d))
{
special = "nan";
wspecial = L"nan";
negative = 0;
}
else if (__isinf (fpnum.dbl.d))
{
special = "inf";
wspecial = L"inf";
negative = fpnum.dbl.d < 0;
}
else
while (fpnum.dbl.d >= divisor && tag[1] != '\0')
{
fpnum.dbl.d /= divisor;
++tag;
}
}
if (special)
{
int width = info->prec > width ? info->prec : width;
if (negative || info->showsign || info->space)
--width;
width -= 3;
if (!info->left && width > 0)
PADN (' ', width);
if (negative)
outchar ('-');
else if (info->showsign)
outchar ('+');
else if (info->space)
outchar (' ');
PRINT (special, wspecial, 3);
if (info->left && width > 0)
PADN (' ', width);
return done;
}
/* Prepare to print the number. We want to use `__printf_fp' so we
have to prepare a `printf_info' structure. */
fp_info.spec = 'f';
fp_info.prec = info->prec < 0 ? 3 : info->prec;
fp_info.is_long_double = info->is_long_double;
fp_info.is_short = info->is_short;
fp_info.is_long = info->is_long;
fp_info.alt = info->alt;
fp_info.space = info->space;
fp_info.left = info->left;
fp_info.showsign = info->showsign;
fp_info.group = info->group;
fp_info.extra = info->extra;
fp_info.pad = info->pad;
fp_info.wide = wide;
if (fp_info.left && fp_info.pad == L' ')
{
/* We must do the padding ourself since the unit character must
be placed before the padding spaces. */
fp_info.width = 0;
done = __printf_fp (fp, &fp_info, &ptr);
if (done > 0)
{
outchar (*tag);
if (info->width > done)
PADN (' ', info->width - done);
}
}
else
{
/* We can let __printf_fp do all the printing and just add our
unit character afterwards. */
fp_info.width = info->width - 1;
done = __printf_fp (fp, &fp_info, &ptr);
if (done > 0)
outchar (*tag);
}
return done;
}
/* This is the function used by `vfprintf' to determine number and
type of the arguments. */
int
printf_size_info (const struct printf_info *info, size_t n, int *argtypes)
{
/* We need only one double or long double argument. */
if (n >= 1)
argtypes[0] = PA_DOUBLE | (info->is_long_double ? PA_FLAG_LONG_DOUBLE : 0);
return 1;
}