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61 lines
2.2 KiB
61 lines
2.2 KiB
/* Implement the snprintf function. |
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Copyright (C) 2003, 2011, 2013 Free Software Foundation, Inc. |
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Written by Kaveh R. Ghazi <ghazi@caip.rutgers.edu>. |
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This file is part of the libiberty library. This library is free |
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software; you can redistribute it and/or modify it under the |
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terms of the GNU General Public License as published by the |
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Free Software Foundation; either version 2, or (at your option) |
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any later version. |
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This library is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with GNU CC; see the file COPYING. If not, write to |
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the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. |
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As a special exception, if you link this library with files |
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compiled with a GNU compiler to produce an executable, this does not cause |
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the resulting executable to be covered by the GNU General Public License. |
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This exception does not however invalidate any other reasons why |
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the executable file might be covered by the GNU General Public License. */ |
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/* |
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@deftypefn Supplemental int snprintf (char *@var{buf}, size_t @var{n}, @ |
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const char *@var{format}, ...) |
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This function is similar to @code{sprintf}, but it will write to |
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@var{buf} at most @code{@var{n}-1} bytes of text, followed by a |
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terminating null byte, for a total of @var{n} bytes. |
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On error the return value is -1, otherwise it returns the number of |
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bytes, not including the terminating null byte, that would have been |
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written had @var{n} been sufficiently large, regardless of the actual |
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value of @var{n}. Note some pre-C99 system libraries do not implement |
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this correctly so users cannot generally rely on the return value if |
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the system version of this function is used. |
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@end deftypefn |
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*/ |
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#include "ansidecl.h" |
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#include <stdarg.h> |
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#include <stddef.h> |
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int vsnprintf (char *, size_t, const char *, va_list); |
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int |
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snprintf (char *s, size_t n, const char *format, ...) |
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{ |
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int result; |
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va_list ap; |
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va_start (ap, format); |
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result = vsnprintf (s, n, format, ap); |
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va_end (ap); |
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return result; |
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}
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