Zilog Z8F0130 - Manual (Page 475)

UM013037-1212 modf
Zilog Developer Studio II – Z8 Encore!
User Manual
451
modf
Breaks the argument value into integral and fractional parts, each of which has the same
sign as the argument. It stores the integral part as a
double in the object pointed to by iptr.
Synopsis
#include

double modf(double value, double *iptr);
Returns
The signed fractional part of value.
Example
double x=1.235;

double f;

double I;

i=modf(x, &f);
pow
Computes the x raised to the power of y. A domain error occurs if x is zero and y is less
than or equal to zero, or if x is negative and y is not an integer. A range error can occur.
Synopsis
#include

double pow(double x, double y);
Returns
The value of x raised to the power y.
Example
double x=2.0;

double y=3.0;

double=res;

res=pow(x,y);
printf
Writes output to the stream pointed to by stdout, under control of the string pointed to by
format that specifies how subsequent arguments are converted for output.
A format string contains two types of objects: plain characters, which are copied
unchanged to stdout, and conversion specifications, each of which fetch zero or more sub-