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850天前#include <stdio.h> |
#include <time.h> |
static unsigned int s_seed = 0; |
void random_seed ( int seed ) |
{ |
if ( !seed ) s_seed=time ( NULL ); |
else s_seed=seed; |
} |
int random_int ( int min, int max ) |
{ |
s_seed=214013*s_seed+2531011; |
return min+ ( s_seed ^ s_seed>>15 ) % ( max-min+1 ); |
} |
float random_float ( float min, float max ) |
{ |
s_seed=214013*s_seed+2531011; |
return min+ ( s_seed>>16 ) * ( 1.0f/65535.0f ) * ( max-min ); |
} |
int main() |
{ |
/* initialize random seed: */ |
random_seed ( 0 ); |
printf ( "random_int(20,9393) = %d\n",random_int ( 20,9393 ) ); |
printf ( "random_float(20.0,9393.0) = %f\n",random_float ( 20.0f,9393.0f ) ); |
return 0; |
} |
