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  • This comparison shows the changes necessary to convert path 
    /openrisc/trunk/rtos/ecos-2.0/packages/language/c/libc/stdio/v2_0/src/output
    from Rev 27 to Rev 174
    ↔ Reverse comparison
  •

Rev 27 → Rev 174

/fwrite.cxx
0,0 → 1,103
//========================================================================
//
// fwrite.cxx
//
// ANSI Stdio fwrite() function
//
//========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <cyg/infra/cyg_ass.h> // Assertion support
#include <cyg/infra/cyg_trac.h> // Tracing support
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
externC size_t
fwrite( const void *ptr, size_t object_size, size_t num_objects,
FILE *stream )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
cyg_ucount32 written;
Cyg_ErrNo err;
CYG_REPORT_FUNCNAMETYPE( "fwrite", "wrote %d objects" );
CYG_REPORT_FUNCARG4( "ptr=%08x, object_size=%d, num_objects=%d, "
"stream=%08x", ptr, object_size, num_objects,
stream );
 
if ( (object_size==0) || (num_objects==0) ) {
CYG_REPORT_RETVAL(0);
return 0;
} // if
 
err = real_stream->write( (cyg_uint8 *)ptr, num_objects*object_size,
&written );
 
if (err) {
real_stream->set_error( err );
errno = err;
} // if
// we return the number of _objects_ written. Simple division is
// sufficient as this returns the quotient rather than rounding
 
CYG_REPORT_RETVAL( written/object_size );
return written/object_size;
} // fwrite()
 
// EOF fwrite.cxx
/fputc.cxx
0,0 → 1,116
//===========================================================================
//
// fputc.cxx
//
// ISO Standard I/O character output functions
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose: Provide the fputc() function. Also provides the function
// versions of putc() and putchar()
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <cyg/infra/cyg_ass.h> // Standard eCos assertion support
#include <cyg/infra/cyg_trac.h> // Standard eCos tracing support
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
 
// FUNCTIONS
 
externC int
fputc( int c, FILE *stream )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
Cyg_ErrNo err;
cyg_uint8 real_c = (cyg_uint8) c;
CYG_REPORT_FUNCNAMETYPE("fputc", "wrote char %d");
CYG_REPORT_FUNCARG2( "c = %d, stream=%08x", c, stream );
CYG_CHECK_DATA_PTR( stream, "stream is not a valid pointer" );
 
err = real_stream->write_byte( real_c );
 
if (err)
{
real_stream->set_error( err );
errno = err;
CYG_REPORT_RETVAL(EOF);
return EOF;
} // if
CYG_REPORT_RETVAL((int)real_c);
return (int)real_c;
 
} // fputc()
 
 
// Also define putchar() even though it can be a macro.
// Undefine the macro first though
#undef putchar
 
externC int
putchar( int c )
{
return fputc( c, stdout );
} // putchar()
 
// Also define putc() even though it can be a macro.
// Undefine the macro first though
#undef putc
 
externC int
putc( int, FILE * ) CYGBLD_ATTRIB_WEAK_ALIAS(fputc);
 
// EOF fputc.cxx
/fputs.cxx
0,0 → 1,90
//========================================================================
//
// fputs.cxx
//
// ANSI Stdio fputs() function
//
//========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <errno.h> // error codes
#include <cyg/libc/stdio/stream.hxx>// Cyg_StdioStream
#include <string.h> // strlen()
 
// FUNCTIONS
 
externC int
fputs( const char *s, FILE *stream )
{
Cyg_StdioStream *real_stream = (Cyg_StdioStream *)stream;
cyg_ucount32 size = strlen(s);
cyg_ucount32 written;
Cyg_ErrNo err;
err = real_stream->write( (cyg_uint8 *)s, size, &written );
 
if (err) {
real_stream->set_error( err );
errno = err;
return EOF;
} // if
return written;
 
} // fputs()
 
// EOF fputs.cxx
/printf.cxx
0,0 → 1,82
//===========================================================================
//
// printf.cxx
//
// ANSI Stdio printf() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <limits.h> // INT_MAX
 
// FUNCTIONS
 
externC int
printf( const char *format, ... )
{
int rc; // return code
va_list ap; // for variable args
 
va_start(ap, format); // init specifying last non-var arg
 
rc = vfnprintf(stdout, INT_MAX, format, ap);
 
va_end(ap); // end var args
 
return rc;
} // printf()
 
// EOF printf.cxx
/fnprintf.cxx
0,0 → 1,81
//===========================================================================
//
// fnprintf.cxx
//
// ANSI Stdio fnprintf() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
 
// FUNCTIONS
 
externC int
fnprintf( FILE *stream, size_t size, const char *format, ... )
{
int rc; // return code
va_list ap; // for variable args
 
va_start(ap, format); // init specifying last non-var arg
 
rc = vfnprintf(stream, size, format, ap);
 
va_end(ap); // end var args
 
return rc;
} // fnprintf()
 
// EOF fnprintf.cxx
/fprintf.cxx
0,0 → 1,82
//===========================================================================
//
// fprintf.cxx
//
// ANSI Stdio fprintf() function
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common project-wide type definitions
#include <stddef.h> // NULL and size_t from compiler
#include <stdio.h> // header for this file
#include <limits.h> // INT_MAX
 
// FUNCTIONS
 
externC int
fprintf( FILE *stream, const char *format, ... )
{
int rc; // return code
va_list ap; // for variable args
 
va_start(ap, format); // init specifying last non-var arg
 
rc = vfnprintf(stream, INT_MAX, format, ap);
 
va_end(ap); // end var args
 
return rc;
} // fprintf()
 
// EOF fprintf.cxx
/vfnprintf.cxx
0,0 → 1,966
//===========================================================================
//
// vfnprintf.c
//
// I/O routines for vfnprintf() for use with ANSI C library
//
//===========================================================================
//####ECOSGPLCOPYRIGHTBEGIN####
// -------------------------------------------
// This file is part of eCos, the Embedded Configurable Operating System.
// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
//
// eCos is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free
// Software Foundation; either version 2 or (at your option) any later version.
//
// eCos 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 General Public License
// for more details.
//
// You should have received a copy of the GNU General Public License along
// with eCos; if not, write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
//
// As a special exception, if other files instantiate templates or use macros
// or inline functions from this file, or you compile this file and link it
// with other works to produce a work based on this file, this file does not
// by itself cause the resulting work to be covered by the GNU General Public
// License. However the source code for this file must still be made available
// in accordance with section (3) of the GNU General Public License.
//
// This exception does not invalidate any other reasons why a work based on
// this file might be covered by the GNU General Public License.
//
// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
// at http://sources.redhat.com/ecos/ecos-license/
// -------------------------------------------
//####ECOSGPLCOPYRIGHTEND####
//===========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s): jlarmour
// Contributors:
// Date: 2000-04-20
// Purpose:
// Description:
// Usage:
//
//####DESCRIPTIONEND####
//
//===========================================================================
//
// This code is based on original code with the following copyright:
//
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Chris Torek.
*
* 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. 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.
*/
 
 
// CONFIGURATION
 
#include <pkgconf/libc_stdio.h> // Configuration header
#include <pkgconf/libc_i18n.h> // Configuration header for mb support
 
// INCLUDES
 
#include <cyg/infra/cyg_type.h> // Common type definitions and support
#include <stdarg.h> // Variable argument definitions
#include <stdio.h> // Standard header for all stdio files
#include <string.h> // memchr() and strlen() functions
#include <cyg/libc/stdio/stream.hxx> // C library streams
 
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
# include <float.h> // for DBL_DIG etc. below
# include <math.h> // for modf()
# include <sys/ieeefp.h> // Cyg_libm_ieee_double_shape_type
 
# define MAXFRACT DBL_DIG
# define MAXEXP DBL_MAX_10_EXP
 
# define BUF (MAXEXP+MAXFRACT+1) /* + decimal point */
# define DEFPREC 6
 
static int
cvt( double, int, int, char *, int, char *, char * );
 
#else // ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
# define BUF 40
 
#endif // ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
/*
* Actual printf innards.
*
* This code is large and complicated...
*/
 
#ifdef CYGINT_LIBC_I18N_MB_REQUIRED
typedef int (*mbtowc_fn_type)(wchar_t *, const char *, size_t, int *);
externC mbtowc_fn_type __get_current_locale_mbtowc_fn();
#endif
 
/*
* Macros for converting digits to letters and vice versa
*/
#define to_digit(c) ((c) - '0')
#define is_digit(c) ((unsigned)to_digit(c) <= 9)
#define to_char(n) ((n) + '0')
 
/*
* Flags used during conversion.
*/
#define ALT 0x001 /* alternate form */
#define HEXPREFIX 0x002 /* add 0x or 0X prefix */
#define LADJUST 0x004 /* left adjustment */
#define LONGDBL 0x008 /* long double; unimplemented */
#define LONGINT 0x010 /* long integer */
#define QUADINT 0x020 /* quad integer */
#define SHORTINT 0x040 /* short integer */
#define ZEROPAD 0x080 /* zero (as opposed to blank) pad */
#define FPT 0x100 /* Floating point number */
#define SIZET 0x200 /* size_t */
 
externC int
vfnprintf ( FILE *stream, size_t n, const char *format, va_list arg)
{
char *fmt; /* format string */
int ch; /* character from fmt */
int x, y; /* handy integers (short term usage) */
char *cp; /* handy char pointer (short term usage) */
int flags; /* flags as above */
 
#ifdef CYGINT_LIBC_I18N_MB_REQUIRED
int state = 0; /* state for mbtowc conversion */
mbtowc_fn_type mbtowc_fn;
#endif
 
int ret; /* return value accumulator */
int width; /* width from format (%8d), or 0 */
int prec; /* precision from format (%.3d), or -1 */
char sign; /* sign prefix (' ', '+', '-', or \0) */
wchar_t wc;
 
#define quad_t long long
#define u_quad_t unsigned long long
 
u_quad_t _uquad; /* integer arguments %[diouxX] */
enum { OCT, DEC, HEX } base;/* base for [diouxX] conversion */
int dprec; /* a copy of prec if [diouxX], 0 otherwise */
int fieldsz; /* field size expanded by sign, etc */
int realsz; /* field size expanded by dprec */
int size; /* size of converted field or string */
char *xdigs; /* digits for [xX] conversion */
#define NIOV 8
char buf[BUF]; /* space for %c, %[diouxX], %[eEfgG] */
char ox[2]; /* space for 0x hex-prefix */
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
char softsign; /* temporary negative sign for floats */
double _double; /* double precision arguments %[eEfgG] */
int fpprec; /* `extra' floating precision in [eEfgG] */
#endif
 
/*
* Choose PADSIZE to trade efficiency vs. size. If larger printf
* fields occur frequently, increase PADSIZE and make the initialisers
* below longer.
*/
#define PADSIZE 16 /* pad chunk size */
static char blanks[PADSIZE] =
{' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '};
static char zeroes[PADSIZE] =
{'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'};
 
#define MIN(a, b) ((a) < (b) ? (a) : (b))
 
/*
* BEWARE, these `goto error' on error, and PAD uses `n'.
*/
#define PRINT(ptr, len) \
CYG_MACRO_START \
cyg_ucount32 length = MIN( (cyg_ucount32) len, n - ret - 1); \
if (((Cyg_StdioStream *)stream)->write( (const cyg_uint8 *)ptr, \
length, &length )) \
goto error; \
if (length < (cyg_ucount32)len) { \
ret += length; \
goto done; \
} \
CYG_MACRO_END
 
 
#define PAD(howmany, with) \
CYG_MACRO_START \
if ((x = (howmany)) > 0) { \
while (x > PADSIZE) { \
PRINT(with, PADSIZE); \
x -= PADSIZE; \
} \
PRINT(with, x); \
} \
CYG_MACRO_END
 
/*
* To extend shorts properly, we need both signed and unsigned
* argument extraction methods.
*/
 
#define SARG() \
(flags&QUADINT ? va_arg(arg, cyg_int64) : \
flags&LONGINT ? va_arg(arg, long) : \
flags&SHORTINT ? (long)(short)va_arg(arg, int) : \
flags&SIZET ? va_arg(arg, size_t) : \
(long)va_arg(arg, int))
#define UARG() \
(flags&QUADINT ? va_arg(arg, cyg_uint64) : \
flags&LONGINT ? va_arg(arg, unsigned long) : \
flags&SHORTINT ? (unsigned long)(unsigned short)va_arg(arg, int) : \
flags&SIZET ? va_arg(arg, size_t) : \
(unsigned long)va_arg(arg, unsigned int))
 
 
xdigs = NULL; // stop compiler whinging
fmt = (char *)format;
ret = 0;
#ifdef CYGINT_LIBC_I18N_MB_REQUIRED
mbtowc_fn = __get_current_locale_mbtowc_fn();
#endif
 
/*
* Scan the format for conversions (`%' character).
*/
for (;;) {
cp = (char *)fmt;
#ifndef CYGINT_LIBC_I18N_MB_REQUIRED
while ((x = ((wc = *fmt) != 0))) {
#else
while ((x = mbtowc_fn (&wc, fmt, MB_CUR_MAX, &state)) > 0) {
#endif
fmt += x;
if (wc == '%') {
fmt--;
break;
}
}
if ((y = fmt - cp) != 0) {
PRINT(cp, y);
ret += y;
}
if ((x <= 0) || (ret >= (int)n)) // @@@ this check with n isn't good enough
goto done;
fmt++; /* skip over '%' */
 
flags = 0;
dprec = 0;
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
fpprec = 0;
#endif
width = 0;
prec = -1;
sign = '\0';
 
rflag: ch = *fmt++;
reswitch: switch (ch) {
case ' ':
/*
* ``If the space and + flags both appear, the space
* flag will be ignored.''
* -- ANSI X3J11
*/
if (!sign)
sign = ' ';
goto rflag;
case '#':
flags |= ALT;
goto rflag;
case '*':
/*
* ``A negative field width argument is taken as a
* - flag followed by a positive field width.''
* -- ANSI X3J11
* They don't exclude field widths read from args.
*/
if ((width = va_arg(arg, int)) >= 0)
goto rflag;
width = -width;
/* FALLTHROUGH */
case '-':
flags |= LADJUST;
goto rflag;
case '+':
sign = '+';
goto rflag;
case '.':
if ((ch = *fmt++) == '*') {
x = va_arg(arg, int);
prec = x < 0 ? -1 : x;
goto rflag;
}
x = 0;
while (is_digit(ch)) {
x = 10 * x + to_digit(ch);
ch = *fmt++;
}
prec = x < 0 ? -1 : x;
goto reswitch;
case '0':
/*
* ``Note that 0 is taken as a flag, not as the
* beginning of a field width.''
* -- ANSI X3J11
*/
flags |= ZEROPAD;
goto rflag;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
x = 0;
do {
x = 10 * x + to_digit(ch);
ch = *fmt++;
} while (is_digit(ch));
width = x;
goto reswitch;
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
case 'L':
flags |= LONGDBL;
goto rflag;
#endif
case 'h':
flags |= SHORTINT;
goto rflag;
case 'l':
if (*fmt == 'l') {
fmt++;
flags |= QUADINT;
} else {
flags |= LONGINT;
}
goto rflag;
case 'q':
flags |= QUADINT;
goto rflag;
case 'c':
*(cp = buf) = va_arg(arg, int);
size = 1;
sign = '\0';
break;
case 'D':
flags |= LONGINT;
/*FALLTHROUGH*/
case 'd':
case 'i':
_uquad = SARG();
#ifndef _NO_LONGLONG
if ((quad_t)_uquad < 0)
#else
if ((long) _uquad < 0)
#endif
{
 
_uquad = -_uquad;
sign = '-';
}
base = DEC;
goto number;
 
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
_double = va_arg(arg, double);
/*
* don't do unrealistic precision; just pad it with
* zeroes later, so buffer size stays rational.
*/
if (prec > MAXFRACT) {
if ((ch != 'g' && ch != 'G') || (flags&ALT))
fpprec = prec - MAXFRACT;
prec = MAXFRACT;
} else if (prec == -1)
prec = DEFPREC;
/*
* cvt may have to round up before the "start" of
* its buffer, i.e. ``intf("%.2f", (double)9.999);'';
* if the first character is still NUL, it did.
* softsign avoids negative 0 if _double < 0 but
* no significant digits will be shown.
*/
cp = buf;
*cp = '\0';
size = cvt(_double, prec, flags, &softsign, ch,
cp, buf + sizeof(buf));
if (softsign)
sign = '-';
if (*cp == '\0')
cp++;
break;
#else
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
// Output nothing at all
(void) va_arg(arg, double); // take off arg anyway
cp = "";
size = 0;
sign = '\0';
break;
#endif // ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
case 'n':
#ifndef _NO_LONGLONG
if (flags & QUADINT)
*va_arg(arg, quad_t *) = ret;
else
#endif
if (flags & LONGINT)
*va_arg(arg, long *) = ret;
else if (flags & SHORTINT)
*va_arg(arg, short *) = ret;
else if (flags & SIZET)
*va_arg(arg, size_t *) = ret;
else
*va_arg(arg, int *) = ret;
continue; /* no output */
case 'O':
flags |= LONGINT;
/*FALLTHROUGH*/
case 'o':
_uquad = UARG();
base = OCT;
goto nosign;
case 'p':
/*
* ``The argument shall be a pointer to void. The
* value of the pointer is converted to a sequence
* of printable characters, in an implementation-
* defined manner.''
* -- ANSI X3J11
*/
/* NOSTRICT */
_uquad = (unsigned long)va_arg(arg, void *);
base = HEX;
xdigs = "0123456789abcdef";
flags |= HEXPREFIX;
ch = 'x';
goto nosign;
case 's':
if ((cp = va_arg(arg, char *)) == NULL)
cp = "(null)";
if (prec >= 0) {
/*
* can't use strlen; can only look for the
* NUL in the first `prec' characters, and
* strlen() will go further.
*/
char *p = (char *)memchr(cp, 0, prec);
 
if (p != NULL) {
size = p - cp;
if (size > prec)
size = prec;
} else
size = prec;
} else
size = strlen(cp);
sign = '\0';
break;
case 'U':
flags |= LONGINT;
/*FALLTHROUGH*/
case 'u':
_uquad = UARG();
base = DEC;
goto nosign;
case 'X':
xdigs = "0123456789ABCDEF";
goto hex;
case 'x':
xdigs = "0123456789abcdef";
hex: _uquad = UARG();
base = HEX;
/* leading 0x/X only if non-zero */
if (flags & ALT && _uquad != 0)
flags |= HEXPREFIX;
 
/* unsigned conversions */
nosign: sign = '\0';
/*
* ``... diouXx conversions ... if a precision is
* specified, the 0 flag will be ignored.''
* -- ANSI X3J11
*/
number: if ((dprec = prec) >= 0)
flags &= ~ZEROPAD;
 
/*
* ``The result of converting a zero value with an
* explicit precision of zero is no characters.''
* -- ANSI X3J11
*/
cp = buf + BUF;
if (_uquad != 0 || prec != 0) {
/*
* Unsigned mod is hard, and unsigned mod
* by a constant is easier than that by
* a variable; hence this switch.
*/
switch (base) {
case OCT:
do {
*--cp = to_char(_uquad & 7);
_uquad >>= 3;
} while (_uquad);
/* handle octal leading 0 */
if (flags & ALT && *cp != '0')
*--cp = '0';
break;
 
case DEC:
/* many numbers are 1 digit */
while (_uquad >= 10) {
*--cp = to_char(_uquad % 10);
_uquad /= 10;
}
*--cp = to_char(_uquad);
break;
 
case HEX:
do {
*--cp = xdigs[_uquad & 15];
_uquad >>= 4;
} while (_uquad);
break;
 
default:
cp = "bug in vfprintf: bad base";
size = strlen(cp);
goto skipsize;
}
}
size = buf + BUF - cp;
skipsize:
break;
case 'z':
flags |= SIZET;
goto rflag;
default: /* "%?" prints ?, unless ? is NUL */
if (ch == '\0')
goto done;
/* pretend it was %c with argument ch */
cp = buf;
*cp = ch;
size = 1;
sign = '\0';
break;
}
 
/*
* All reasonable formats wind up here. At this point, `cp'
* points to a string which (if not flags&LADJUST) should be
* padded out to `width' places. If flags&ZEROPAD, it should
* first be prefixed by any sign or other prefix; otherwise,
* it should be blank padded before the prefix is emitted.
* After any left-hand padding and prefixing, emit zeroes
* required by a decimal [diouxX] precision, then print the
* string proper, then emit zeroes required by any leftover
* floating precision; finally, if LADJUST, pad with blanks.
*
* Compute actual size, so we know how much to pad.
* fieldsz excludes decimal prec; realsz includes it.
*/
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
fieldsz = size + fpprec;
#else
fieldsz = size;
#endif
if (sign)
fieldsz++;
else if (flags & HEXPREFIX)
fieldsz+= 2;
realsz = dprec > fieldsz ? dprec : fieldsz;
 
/* right-adjusting blank padding */
if ((flags & (LADJUST|ZEROPAD)) == 0) {
if (width - realsz > 0) {
PAD(width - realsz, blanks);
ret += width - realsz;
}
}
 
/* prefix */
if (sign) {
PRINT(&sign, 1);
ret++;
} else if (flags & HEXPREFIX) {
ox[0] = '0';
ox[1] = ch;
PRINT(ox, 2);
ret += 2;
}
 
/* right-adjusting zero padding */
if ((flags & (LADJUST|ZEROPAD)) == ZEROPAD) {
if (width - realsz > 0) {
PAD(width - realsz, zeroes);
ret += width - realsz;
}
}
 
if (dprec - fieldsz > 0) {
/* leading zeroes from decimal precision */
PAD(dprec - fieldsz, zeroes);
ret += dprec - fieldsz;
}
 
/* the string or number proper */
PRINT(cp, size);
ret += size;
 
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
/* trailing f.p. zeroes */
PAD(fpprec, zeroes);
ret += fpprec;
#endif
 
/* left-adjusting padding (always blank) */
if (flags & LADJUST) {
if (width - realsz > 0) {
PAD(width - realsz, blanks);
ret += width - realsz;
}
}
 
}
done:
error:
return (((Cyg_StdioStream *) stream)->get_error() ? EOF : ret);
/* NOTREACHED */
}
 
 
#ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
static char *
round(double fract, int *exp, char *start, char *end, char ch, char *signp)
{
double tmp;
 
if (fract)
(void)modf(fract * 10, &tmp);
else
tmp = to_digit(ch);
if (tmp > 4)
for (;; --end) {
if (*end == '.')
--end;
if (++*end <= '9')
break;
*end = '0';
if (end == start) {
if (exp) { /* e/E; increment exponent */
*end = '1';
++*exp;
}
else { /* f; add extra digit */
*--end = '1';
--start;
}
break;
}
}
/* ``"%.3f", (double)-0.0004'' gives you a negative 0. */
else if (*signp == '-')
for (;; --end) {
if (*end == '.')
--end;
if (*end != '0')
break;
if (end == start)
*signp = 0;
}
return (start);
} // round()
 
 
static char *
exponent(char *p, int exp, int fmtch)
{
char *t;
char expbuf[MAXEXP];
 
*p++ = fmtch;
if (exp < 0) {
exp = -exp;
*p++ = '-';
}
else
*p++ = '+';
t = expbuf + MAXEXP;
if (exp > 9) {
do {
*--t = to_char(exp % 10);
} while ((exp /= 10) > 9);
*--t = to_char(exp);
for (; t < expbuf + MAXEXP; *p++ = *t++);
}
else {
*p++ = '0';
*p++ = to_char(exp);
}
return (p);
} // exponent()
 
 
static int
cvt(double number, int prec, int flags, char *signp, int fmtch, char *startp,
char *endp)
{
Cyg_libm_ieee_double_shape_type ieeefp;
char *t = startp;
 
ieeefp.value = number;
*signp = 0;
if ( ieeefp.number.sign ){ // this checks for <0.0 and -0.0
number = -number;
*signp = '-';
}
 
if (finite(number)) {
char *p;
double fract;
int dotrim, expcnt, gformat;
double integer, tmp;
 
dotrim = expcnt = gformat = 0;
fract = modf(number, &integer);
 
/* get an extra slot for rounding. */
t = ++startp;
 
/*
* get integer portion of number; put into the end of the buffer; the
* .01 is added for modf(356.0 / 10, &integer) returning .59999999...
*/
for (p = endp - 1; integer; ++expcnt) {
tmp = modf(integer / 10, &integer);
*p-- = to_char((int)((tmp + .01) * 10));
}
switch (fmtch) {
case 'f':
/* reverse integer into beginning of buffer */
if (expcnt)
for (; ++p < endp; *t++ = *p);
else
*t++ = '0';
/*
* if precision required or alternate flag set, add in a
* decimal point.
*/
if (prec || flags&ALT)
*t++ = '.';
/* if requires more precision and some fraction left */
if (fract) {
if (prec)
do {
fract = modf(fract * 10, &tmp);
*t++ = to_char((int)tmp);
} while (--prec && fract);
if (fract)
startp = round(fract, (int *)NULL, startp,
t - 1, (char)0, signp);
}
for (; prec--; *t++ = '0');
break;
case 'e':
case 'E':
eformat: if (expcnt) {
*t++ = *++p;
if (prec || flags&ALT)
*t++ = '.';
/* if requires more precision and some integer left */
for (; prec && ++p < endp; --prec)
*t++ = *p;
/*
* if done precision and more of the integer component,
* round using it; adjust fract so we don't re-round
* later.
*/
if (!prec && ++p < endp) {
fract = 0;
startp = round((double)0, &expcnt, startp,
t - 1, *p, signp);
}
/* adjust expcnt for digit in front of decimal */
--expcnt;
}
/* until first fractional digit, decrement exponent */
else if (fract) {
/* adjust expcnt for digit in front of decimal */
for (expcnt = -1;; --expcnt) {
fract = modf(fract * 10, &tmp);
if (tmp)
break;
}
*t++ = to_char((int)tmp);
if (prec || flags&ALT)
*t++ = '.';
}
else {
*t++ = '0';
if (prec || flags&ALT)
*t++ = '.';
}
/* if requires more precision and some fraction left */
if (fract) {
if (prec)
do {
fract = modf(fract * 10, &tmp);
*t++ = to_char((int)tmp);
} while (--prec && fract);
if (fract)
startp = round(fract, &expcnt, startp,
t - 1, (char)0, signp);
}
/* if requires more precision */
for (; prec--; *t++ = '0');
 
/* unless alternate flag, trim any g/G format trailing 0's */
if (gformat && !(flags&ALT)) {
while (t > startp && *--t == '0');
if (*t == '.')
--t;
++t;
}
t = exponent(t, expcnt, fmtch);
break;
case 'g':
case 'G':
/* a precision of 0 is treated as a precision of 1. */
if (!prec)
++prec;
/*
* ``The style used depends on the value converted; style e
* will be used only if the exponent resulting from the
* conversion is less than -4 or greater than the precision.''
* -- ANSI X3J11
*/
if (expcnt > prec || (!expcnt && fract && fract < .0001)) {
/*
* g/G format counts "significant digits, not digits of
* precision; for the e/E format, this just causes an
* off-by-one problem, i.e. g/G considers the digit
* before the decimal point significant and e/E doesn't
* count it as precision.
*/
--prec;
fmtch -= 2; /* G->E, g->e */
gformat = 1;
goto eformat;
}
/*
* reverse integer into beginning of buffer,
* note, decrement precision
*/
if (expcnt)
for (; ++p < endp; *t++ = *p, --prec);
else
*t++ = '0';
/*
* if precision required or alternate flag set, add in a
* decimal point. If no digits yet, add in leading 0.
*/
if (prec || flags&ALT) {
dotrim = 1;
*t++ = '.';
}
else
dotrim = 0;
/* if requires more precision and some fraction left */
if (fract) {
if (prec) {
do {
fract = modf(fract * 10, &tmp);
*t++ = to_char((int)tmp);
} while(!tmp);
while (--prec && fract) {
fract = modf(fract * 10, &tmp);
*t++ = to_char((int)tmp);
}
}
if (fract)
startp = round(fract, (int *)NULL, startp,
t - 1, (char)0, signp);
}
/* alternate format, adds 0's for precision, else trim 0's */
if (flags&ALT)
for (; prec--; *t++ = '0');
else if (dotrim) {
while (t > startp && *--t == '0');
if (*t != '.')
++t;
}
}
} else {
unsigned case_adj;
switch (fmtch) {
case 'f':
case 'g':
case 'e':
case_adj = 'a' - 'A';
break;
default:
case_adj = 0;
}
if (isnan(number)) {
*t++ = 'N' + case_adj;
*t++ = 'A' + case_adj;
*t++ = 'N' + case_adj;
} else { // infinite
*t++ = 'I' + case_adj;
*t++ = 'N' + case_adj;
*t++ = 'F' + case_adj;
}
}
return (t - startp);
} // cvt()
 
#endif // ifdef CYGSEM_LIBC_STDIO_PRINTF_FLOATING_POINT
 
// EOF vfnprintf.cxx

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