Zilog ZUSBOPTS Uživatelský manuál stáhnout pdf (Strana 451)

UM017105-0511 Standard Functions

Zilog Developer Studio II – ZNEO™

Tests for any hexadecimal digit '0' to '9' and 'A' to 'F'.

#include <ctype.h>

int isxdigit(int c);

char c='f';

r=isxdigit(c);

Computes the absolute value of a long int j.

#include <stdlib.h>

long labs(long j);

long i=-193250;

ldexp, ldexpf

Multiplies a floating-point number by an integral power of 2. A range error can occur.

#include <math.h>

double ldexp(double x, int exp);

float ldexpf(float x, int exp);

The value of x times 2 raised to the power of exp.

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Zilog ZUSBOPTS Uživatelský manuál Strana 451