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Diffstat (limited to 'vmime-master/src/vmime/utility/random.hpp')
-rw-r--r-- | vmime-master/src/vmime/utility/random.hpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/vmime-master/src/vmime/utility/random.hpp b/vmime-master/src/vmime/utility/random.hpp new file mode 100644 index 0000000..21f4949 --- /dev/null +++ b/vmime-master/src/vmime/utility/random.hpp @@ -0,0 +1,78 @@ +// +// VMime library (http://www.vmime.org) +// Copyright (C) 2002 Vincent Richard <vincent@vmime.org> +// +// This program is free software; you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation; either version 3 of +// the License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// General Public License for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// Linking this library statically or dynamically with other modules is making +// a combined work based on this library. Thus, the terms and conditions of +// the GNU General Public License cover the whole combination. +// + +#ifndef VMIME_UTILITY_RANDOM_HPP_INCLUDED +#define VMIME_UTILITY_RANDOM_HPP_INCLUDED + + +#include "vmime/types.hpp" + + +namespace vmime { +namespace utility { + + +/** Pseudo-random number generator. + */ +class random { + +public: + + /** Return a new random number. + * + * @return random number + */ + static unsigned int getNext(); + + /** Return the current time as a number (may be used to + * build "random" strings). + * + * @return time as a number + */ + static unsigned int getTime(); + + /** Return the current process number (may be user to + * build "random" strings). + * + * @return process number + */ + static unsigned int getProcess(); + + /** Return a random character string with the specified length. + * + * @param length length of the string to generate + * @param randomChars list of characters to use + * @return random string + */ + static const string getString( + const size_t length, + const string& randomChars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789" + ); +}; + + +} // utility +} // vmime + + +#endif // VMIME_UTILITY_RANDOM_HPP_INCLUDED |