Mercurial > hg > CbC > CbC_gcc
annotate libiberty/snprintf.c @ 108:7ad14f446135
add CbC-example/rectypeTest/
| author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Thu, 14 Jun 2012 20:30:24 +0900 |
| parents | f6334be47118 |
| children | 04ced10e8804 |
| rev | line source |
|---|---|
| 0 | 1 /* Implement the snprintf function. |
|
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
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2 Copyright (C) 2003, 2011 Free Software Foundation, Inc. |
| 0 | 3 Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>. |
| 4 | |
| 5 This file is part of the libiberty library. This library is free | |
| 6 software; you can redistribute it and/or modify it under the | |
| 7 terms of the GNU General Public License as published by the | |
| 8 Free Software Foundation; either version 2, or (at your option) | |
| 9 any later version. | |
| 10 | |
| 11 This library is distributed in the hope that it will be useful, | |
| 12 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 14 GNU General Public License for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with GNU CC; see the file COPYING. If not, write to | |
| 18 the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
| 19 | |
| 20 As a special exception, if you link this library with files | |
| 21 compiled with a GNU compiler to produce an executable, this does not cause | |
| 22 the resulting executable to be covered by the GNU General Public License. | |
| 23 This exception does not however invalidate any other reasons why | |
| 24 the executable file might be covered by the GNU General Public License. */ | |
| 25 | |
| 26 /* | |
| 27 | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
28 @deftypefn Supplemental int snprintf (char *@var{buf}, size_t @var{n}, @ |
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f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
55
diff
changeset
|
29 const char *@var{format}, ...) |
| 0 | 30 |
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55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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31 This function is similar to @code{sprintf}, but it will write to |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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32 @var{buf} at most @code{@var{n}-1} bytes of text, followed by a |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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33 terminating null byte, for a total of @var{n} bytes. |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
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diff
changeset
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34 On error the return value is -1, otherwise it returns the number of |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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35 bytes, not including the terminating null byte, that would have been |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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36 written had @var{n} been sufficiently large, regardless of the actual |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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37 value of @var{n}. Note some pre-C99 system libraries do not implement |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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38 this correctly so users cannot generally rely on the return value if |
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77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
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39 the system version of this function is used. |
| 0 | 40 |
| 41 @end deftypefn | |
| 42 | |
| 43 */ | |
| 44 | |
| 45 #include "ansidecl.h" | |
| 46 | |
| 47 #include <stdarg.h> | |
| 48 #include <stddef.h> | |
| 49 | |
| 50 int vsnprintf (char *, size_t, const char *, va_list); | |
| 51 | |
| 52 int | |
| 53 snprintf (char *s, size_t n, const char *format, ...) | |
| 54 { | |
| 55 int result; | |
| 56 VA_OPEN (ap, format); | |
| 57 VA_FIXEDARG (ap, char *, s); | |
| 58 VA_FIXEDARG (ap, size_t, n); | |
| 59 VA_FIXEDARG (ap, const char *, format); | |
| 60 result = vsnprintf (s, n, format, ap); | |
| 61 VA_CLOSE (ap); | |
| 62 return result; | |
| 63 } |