C language function Daquan (l start)

Function Name: Labs

Usage: Long Labs (long N);

program Example:

#include
#include
int main(void)
{
long result;
long x = -12345678L;
result= labs(x);
printf("number: %ld abs value: %ld\n",
x, result);
return 0;
}

Function Name: Ldexp

function: Calculate the power of value*2

Usage: Double ldexp (double value, int exp);

program Example:

#include
#include
int main(void)
{
double value;
double x = 2;
/* ldexp raises 2 by a power of 3
then multiplies the result by 2 */
value = ldexp(x,3);
printf("The ldexp value is: %lf\n",
value);
return 0;
}

Function Name: Ldiv

Function: Two long integer number division, return quotient and remainder

Usage: ldiv_t ldiv (Long lnumer, long ldenom);

program Example:

/* ldiv example */
#include
#include
int main(void)
{
ldiv_t lx;
lx = ldiv(100000L, 30000L);
printf("100000 div 30000 = %ld remainder %ld\n", lx.quot, lx.rem);
return 0;
}