Isxdigit, Labs, Ldexp, ldexpf – Zilog ZUSBOPTS User Manual
Page 451: Isxdigit labs ldexp, ldexpf, Synopsis, Example, Returns
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UM017105-0511
Standard Functions
Zilog Developer Studio II – ZNEO™
User Manual
423
isxdigit
Tests for any hexadecimal digit '0' to '9' and 'A' to 'F'.
Synopsis
#include <ctype.h>
int isxdigit(int c);
Example
int r;
char c='f';
r=isxdigit(c);
labs
Computes the absolute value of a long int j.
Synopsis
#include <stdlib.h>
long labs(long j);
Example
long i=-193250;
long j
j=labs(i);
ldexp, ldexpf
Multiplies a floating-point number by an integral power of 2. A range error can occur.
Synopsis
#include <math.h>
double ldexp(double x, int exp);
float ldexpf(float x, int exp);
Returns
The value of x times 2 raised to the power of exp.
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