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Diffstat (limited to 'newlib/libc/stdio/sprintf.c')
| -rw-r--r-- | newlib/libc/stdio/sprintf.c | 351 |
1 files changed, 0 insertions, 351 deletions
diff --git a/newlib/libc/stdio/sprintf.c b/newlib/libc/stdio/sprintf.c deleted file mode 100644 index cbd5802..0000000 --- a/newlib/libc/stdio/sprintf.c +++ /dev/null @@ -1,351 +0,0 @@ -/* - * Copyright (c) 1990 The Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Berkeley. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. - */ - -/* - -FUNCTION - <<printf>>, <<fprintf>>, <<sprintf>>---format output -INDEX - fprintf -INDEX - printf -INDEX - sprintf - -ANSI_SYNOPSIS - #include <stdio.h> - - int printf(const char *<[format]> [, <[arg]>, ...]); - int fprintf(FILE *<[fd]>, const char *<[format]> [, <[arg]>, ...]); - int sprintf(char *<[str]>, const char *<[format]> [, <[arg]>, ...]); - -TRAD_SYNOPSIS - #include <stdio.h> - - int printf(<[format]> [, <[arg]>, ...]) - char *<[format]>; - - int fprintf(<[fd]>, <[format]> [, <[arg]>, ...]); - FILE *<[fd]>; - char *<[format]>; - - int sprintf(<[str]>, <[format]> [, <[arg]>, ...]); - char *<[str]>; - char *<[format]>; - -DESCRIPTION - <<printf>> accepts a series of arguments, applies to each a - format specifier from <<*<[format]>>>, and writes the - formatted data to <<stdout>>, terminated with a null character. - The behavior of <<printf>> is undefined if there are not enough - arguments for the format. - <<printf>> returns when it reaches the end of the format string. - If there are more arguments than the format requires, excess - arguments are ignored. - - <<fprintf>> and <<sprintf>> are identical to <<printf>>, other than the - destination of the formatted output: <<fprintf>> sends the - output to a specified file <[fd]>, while <<sprintf>> stores the - output in the specified char array <[str]>. For <<sprintf>>, - the behavior is also undefined if the output <<*<[str]>>> - overlaps with one of the arguments. - <[format]> is a pointer to a charater string containing two types of - objects: ordinary characters (other than <<%>>), which are - copied unchanged to the output, and conversion - specifications, each of which is introduced by <<%>>. - (To include <<%>> in the output, use <<%%>> in the format string.) - A conversion specification has the following form: - -. %[<[flags]>][<[width]>][.<[prec]>][<[size]>][<[type]>] - - The fields of the conversion specification have the following meanings: - - O+ - o <[flags]> - - an optional sequence of characters which control - output justification, numeric signs, decimal points, - trailing zeroes, and octal and hex prefixes. - The flag characters are minus (<<->>), plus (<<+>>), - space ( ), zero (<<0>>), and sharp (<<#>>). They can - appear in any combination. - - o+ - o - - The result of the conversion is left justified, and the right is - padded with blanks. If you do not use this flag, the result is right - justified, and padded on the left. - - o + - The result of a signed conversion (as determined by <[type]>) - will always begin with a plus or minus sign. (If you do not use - this flag, positive values do not begin with a plus sign.) - - o " " (space) - If the first character of a signed conversion specification - is not a sign, or if a signed conversion results in no - characters, the result will begin with a space. If the - space ( ) flag and the plus (<<+>>) flag both appear, - the space flag is ignored. - - o 0 - If the <[type]> character is <<d>>, <<i>>, <<o>>, <<u>>, - <<x>>, <<X>>, <<e>>, <<E>>, <<f>>, <<g>>, or <<G>>: leading zeroes, - are used to pad the field width (following any indication of sign or - base); no spaces are used for padding. If the zero (<<0>>) and - minus (<<->>) flags both appear, the zero (<<0>>) flag will - be ignored. For <<d>>, <<i>>, <<o>>, <<u>>, <<x>>, and <<X>> - conversions, if a precision <[prec]> is specified, the zero (<<0>>) - flag is ignored. - - Note that <<0>> is interpreted as a flag, not as the beginning - of a field width. - - o # - The result is to be converted to an alternative form, according - to the next character: - - o+ - o 0 - increases precision to force the first digit - of the result to be a zero. - - o x - a non-zero result will have a <<0x>> prefix. - - o X - a non-zero result will have a <<0X>> prefix. - - o e, E or f - The result will always contain a decimal point - even if no digits follow the point. - (Normally, a decimal point appears only if a - digit follows it.) Trailing zeroes are removed. - - o g or G - same as <<e>> or <<E>>, but trailing zeroes - are not removed. - - o all others - undefined. - - o- - o- - - o <[width]> - - <[width]> is an optional minimum field width. You can either - specify it directly as a decimal integer, or indirectly by - using instead an asterisk (<<*>>), in which case an <<int>> - argument is used as the field width. Negative field widths - are not supported; if you attempt to specify a negative field - width, it is interpreted as a minus (<<->>) flag followed by a - positive field width. - - o <[prec]> - - an optional field; if present, it is introduced with `<<.>>' - (a period). This field gives the maximum number of - characters to print in a conversion; the minimum number of - digits of an integer to print, for conversions with <[type]> - <<d>>, <<i>>, <<o>>, <<u>>, <<x>>, and <<X>>; the maximum number of - significant digits, for the <<g>> and <<G>> conversions; - or the number of digits to print after the decimal - point, for <<e>>, <<E>>, and <<f>> conversions. You can specify - the precision either directly as a decimal integer or - indirectly by using an asterisk (<<*>>), in which case - an <<int>> argument is used as the precision. Supplying a negative - precision is equivalent to omitting the precision. - If only a period is specified the precision is zero. - If a precision appears with any other conversion <[type]> - than those listed here, the behavior is undefined. - - o <[size]> - - <<h>>, <<l>>, and <<L>> are optional size characters which - override the default way that <<printf>> interprets the - data type of the corresponding argument. <<h>> forces - the following <<d>>, <<i>>, <<o>>, <<u>>, <<x>> or <<X>> conversion - <[type]> to apply to a <<short>> or <<unsigned short>>. <<h>> also - forces a following <<n>> <[type]> to apply to - a pointer to a <<short>>. Similarily, an - <<l>> forces the following <<d>>, <<i>>, <<o>>, <<u>>, - <<x>> or <<X>> conversion <[type]> to apply to a <<long>> or - <<unsigned long>>. <<l>> also forces a following <<n>> <[type]> to - apply to a pointer to a <<long>>. If an <<h>> - or an <<l>> appears with another conversion - specifier, the behavior is undefined. <<L>> forces a - following <<e>>, <<E>>, <<f>>, <<g>> or <<G>> conversion <[type]> to - apply to a <<long double>> argument. If <<L>> appears with - any other conversion <[type]>, the behavior is undefined. - - o <[type]> - - <[type]> specifies what kind of conversion <<printf>> performs. - Here is a table of these: - - o+ - o % - prints the percent character (<<%>>) - - o c - prints <[arg]> as single character - - o s - prints characters until precision is reached or a null terminator - is encountered; takes a string pointer - - o d - prints a signed decimal integer; takes an <<int>> (same as <<i>>) - - o i - prints a signed decimal integer; takes an <<int>> (same as <<d>>) - - o o - prints a signed octal integer; takes an <<int>> - - o u - prints an unsigned decimal integer; takes an <<int>> - - o x - prints an unsigned hexadecimal integer (using <<abcdef>> as - digits beyond <<9>>); takes an <<int>> - - o X - prints an unsigned hexadecimal integer (using <<ABCDEF>> as - digits beyond <<9>>); takes an <<int>> - - o f - prints a signed value of the form <<[-]9999.9999>>; takes - a floating point number - - o e - prints a signed value of the form <<[-]9.9999e[+|-]999>>; takes a - floating point number - - o E - prints the same way as <<e>>, but using <<E>> to introduce the - exponent; takes a floating point number - - o g - prints a signed value in either <<f>> or <<e>> form, based on given - value and precision---trailing zeros and the decimal point are - printed only if necessary; takes a floating point number - - o G - prints the same way as <<g>>, but using <<E>> for the exponent if an - exponent is needed; takes a floating point number - - o n - stores (in the same object) a count of the characters written; - takes a pointer to <<int>> - - o p - prints a pointer in an implementation-defined format. - This implementation treats the pointer as an - <<unsigned long>> (same as <<Lu>>). - o- -O- - - -RETURNS -<<sprintf>> returns the number of bytes in the output string, -save that the concluding <<NULL>> is not counted. -<<printf>> and <<fprintf>> return the number of characters transmitted. -If an error occurs, <<printf>> and <<fprintf>> return <<EOF>>. No -error returns occur for <<sprintf>>. - -PORTABILITY - The ANSI C standard specifies that implementations must - support at least formatted output of up to 509 characters. - -Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>, -<<lseek>>, <<read>>, <<sbrk>>, <<write>>. -*/ - -#include <stdio.h> -#ifdef _HAVE_STDC -#include <stdarg.h> -#else -#include <varargs.h> -#endif -#include <limits.h> -#include <_ansi.h> -#include "local.h" - -int -#ifdef _HAVE_STDC -_DEFUN (_sprintf_r, (ptr, str, fmt), struct _reent *ptr _AND char *str _AND _CONST char *fmt _DOTS) -#else -_sprintf_r (ptr, str, fmt, va_alist) - struct _reent *ptr; - char *str; - _CONST char *fmt; - va_dcl -#endif -{ - int ret; - va_list ap; - FILE f; - - f._flags = __SWR | __SSTR; - f._bf._base = f._p = (unsigned char *) str; - f._bf._size = f._w = INT_MAX; - f._data = ptr; -#ifdef _HAVE_STDC - va_start (ap, fmt); -#else - va_start (ap); -#endif - ret = vfprintf (&f, fmt, ap); - va_end (ap); - *f._p = 0; - return (ret); -} - -#ifndef _REENT_ONLY - -int -#ifdef _HAVE_STDC -_DEFUN (sprintf, (str, fmt), char *str _AND _CONST char *fmt _DOTS) -#else -sprintf (str, fmt, va_alist) - char *str; - _CONST char *fmt; - va_dcl -#endif -{ - int ret; - va_list ap; - FILE f; - - f._flags = __SWR | __SSTR; - f._bf._base = f._p = (unsigned char *) str; - f._bf._size = f._w = INT_MAX; - f._data = _REENT; -#ifdef _HAVE_STDC - va_start (ap, fmt); -#else - va_start (ap); -#endif - ret = vfprintf (&f, fmt, ap); - va_end (ap); - *f._p = 0; - return (ret); -} - -#endif |