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Annotation of parser3/src/include/pa_random.h, revision 1.2

1.1       misha       1: /** @file
                      2:        Parser: random related functions.
                      3: 
1.2     ! misha       4:        Copyright (c) 2001-2009 ArtLebedev Group (http://www.artlebedev.com)
1.1       misha       5:        Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
                      6: */
                      7: 
                      8: #ifndef PA_RANDOM_H
                      9: #define PA_RANDOM_H
                     10: 
1.2     ! misha      11: static const char * const IDENT_RANDOM_H="$Date: 2009-01-25 01:57:09 $";
1.1       misha      12: 
                     13: #include "pa_types.h"
                     14: 
                     15: #define MAX_UINT 0xFFFFFFFFu
                     16: 
                     17: void random(void *buffer, size_t size);
                     18: 
                     19: static inline int _random(uint top) {
                     20:        uint raw;
                     21:        random(&raw, sizeof(raw));
                     22:        return int(double(raw) / MAX_UINT * top );
                     23: }
                     24: 
                     25: /// to hell with extra bytes on 64bit platforms
                     26: struct uuid {
                     27:        unsigned int    time_low;
                     28:        unsigned short  time_mid;
                     29:        unsigned short  time_hi_and_version;
                     30:        unsigned short  clock_seq;
                     31:        unsigned char   node[6];
                     32: };
                     33: 
                     34: uuid get_uuid();
                     35: 
                     36: #endif