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Diffstat (limited to 'src/components/utils/src/gen_hash.cc')
-rw-r--r-- | src/components/utils/src/gen_hash.cc | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/components/utils/src/gen_hash.cc b/src/components/utils/src/gen_hash.cc new file mode 100644 index 0000000000..6ac5c217c3 --- /dev/null +++ b/src/components/utils/src/gen_hash.cc @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2015, Ford Motor Company + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following + * disclaimer in the documentation and/or other materials provided with the + * distribution. + * + * Neither the name of the Ford Motor Company nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include "utils/gen_hash.h" + +#include <cstdlib> + +namespace utils { + +const std::string gen_hash(size_t size) { + static const char symbols[] = "0123456789" + "abcdefghijklmnopqrstuvwxyz" + "ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + static const size_t capacity = sizeof(symbols) - 1; + + std::string hash(size, '\0'); + for (std::string::iterator i = hash.begin(); i != hash.end(); ++i) { + int index = std::rand() % capacity; + *i = symbols[index]; + } + return hash; +} + +} // namespace utils |