61 lines
1.4 KiB
C++
61 lines
1.4 KiB
C++
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/*
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PString.cpp - Lightweight printable string class
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Copyright (c) 2009-2012 Mikal Hart. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "PString.h"
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void PString::begin()
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{
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_cur = _buf;
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if (_size > 0)
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_buf[0] = '\0';
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}
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#if defined(ARDUINO) && ARDUINO >= 100
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size_t PString::write(uint8_t b)
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#else
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void PString::write(uint8_t b)
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#endif
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{
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if (_cur + 1 < _buf + _size)
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{
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*_cur++ = (char)b;
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*_cur = '\0';
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#if defined(ARDUINO) && ARDUINO >= 100
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return 1;
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#endif
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}
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#if defined(ARDUINO) && ARDUINO >= 100
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return 0;
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#endif
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}
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int PString::format(char *str, ...)
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{
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va_list argptr;
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va_start(argptr, str);
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int ret = vsnprintf(_cur, _size - (_cur - _buf), str, argptr);
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if (_size)
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while (*_cur)
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++_cur;
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return ret;
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}
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