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// Lcm
//
// lcm
//
// Least common multiple
//
// lcm(a,b) = |a*b| / gcd(a,b)
//
// Inputs: 2
// Outputs: 1
// Constants: 0
#include <math.h>
#include "ts.h"
ts_parameter_t const ts_lcm_p = { .n_inputs = 2, .n_outputs = 1, .n_constants = 0, .params_size = 0 };
uint_t ts_lcm_offset( ts_constant_t const *c )
{
( void )c;
return ( 0 );
}
int ts_lcm(
fp_t * const *y, uint_t y_n,
fp_t const * const *x, uint_t x_n,
uint_t n, ts_constant_t const *c
)
{
TS_PROLOGUE( ts_lcm_p );
(void)c;
for( uint_t i = 0; i < n; ++i )
{
fp_t ax = fabs(x[0][i]);
fp_t bx = fabs(x[1][i]);
if (ax > 9223372036854775807.0 || bx > 9223372036854775807.0)
{
y[0][i] = 0.0;
continue;
}
long a = (long)ax;
long b = (long)bx;
if( !a || !b )
{
y[0][i] = 0.0;
}
else
{
long ta = a;
long tb = b;
while( tb )
{
long t = tb;
tb = ta % tb;
ta = t;
}
y[0][i] = (fp_t)(a / ta) * (fp_t)b;
}
}
return 0;
}
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