Ldiv, Log, logf, Ldiv log, logf – Zilog ZUSBOPTS User Manual
Page 452: Example, Synopsis, Returns
Standard Functions
UM017105-0511
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Zilog Developer Studio II – ZNEO™
User Manual
Example
double x=1.235
int exp=2;
double y;
y=ldexp(x,exp);
ldiv
Computes the quotient and remainder of the division of the numerator
numer
by the
denominator
denom
. If the division is inexact, the sign of the quotient is that of the
mathematical quotient, and the magnitude of the quotient is the largest integer less than
the magnitude of the mathematical quotient.
Synopsis
#include
ldiv_t ldiv(long numer, long denom);
Example
long x=25000;
long y=300;
ldiv_t t;
long q;
long r;
t=ldiv(x,y);
q=t.quot;
r=t.rem;
log, logf
Computes the natural logarithm of x. A domain error occurs if the argument is negative. A
range error occurs if the argument is zero.
Synopsis
#include
double log(double x);
float logf(float x);
Returns
The natural logarithm.