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BeefySysLib/third_party/sparsehash/windows/port.cc
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BeefySysLib/third_party/sparsehash/windows/port.cc
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/* Copyright (c) 2007, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ---
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* Author: Craig Silverstein
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*/
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#include <sparsehash/internal/sparseconfig.h>
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#ifndef WIN32
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# error You should only be including windows/port.cc in a windows environment!
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#endif
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#include "config.h"
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#include <stdarg.h> // for va_list, va_start, va_end
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#include "port.h"
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// Calls the windows _vsnprintf, but always NUL-terminate.
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int snprintf(char *str, size_t size, const char *format, ...) {
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if (size == 0) // not even room for a \0?
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return -1; // not what C99 says to do, but what windows does
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str[size-1] = '\0';
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va_list ap;
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va_start(ap, format);
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const int r = _vsnprintf(str, size-1, format, ap);
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va_end(ap);
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return r;
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}
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std::string TmpFile(const char* basename) {
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char tmppath_buffer[1024];
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int tmppath_len = GetTempPathA(sizeof(tmppath_buffer), tmppath_buffer);
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if (tmppath_len <= 0 || tmppath_len >= sizeof(tmppath_buffer)) {
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return basename; // an error, so just bail on tmppath
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}
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snprintf(tmppath_buffer + tmppath_len, sizeof(tmppath_buffer) - tmppath_len,
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"\\%s", basename);
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return tmppath_buffer;
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}
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