SW006014 Microchip Technology, SW006014 Datasheet - Page 173

• Manufacturer Part Number: SW006014
• Description: C COMPILER MPLAB FOR PIC24 MCU
• Manufacturer: Microchip Technology
• Type: MPLAB® C Compilerr
• Series: PIC24r

Specifications of SW006014

• Supported Families: PIC24
• Core Architecture: PIC
• Kit Contents: Software And Docs
• Mcu Supported Families: PIC24
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: PIC24
• Lead Free Status / RoHS Status: Not applicable / Not applicable
• For Use With/related Products: PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
ldexp
Description:
Include:
Prototype:
Arguments:
Return Value:
Remarks:
Example:
Calculates the result of a double precision floating-point number
multiplied by an exponent of 2.
<math.h>
double ldexp(double x, int ex);
x
ex
Returns x * 2^ex. On an overflow, ldexp returns inf and on an
underflow, ldexp returns 0.
A range error will occur on overflow or underflow.
#include <math.h>
#include <stdio.h> /* for printf, perror */
#include <errno.h> /* for errno
int main(void)
{
}
double x,y;
int n;
errno = 0;
x = -0.625;
n = 2;
y = ldexp (x, n);
if (errno)
printf("For a number = %f and an exponent = %d\n",
printf("
errno = 0;
x = 2.5;
n = 3;
y = ldexp (x, n);
if (errno)
printf("For a number = %f and an exponent = %d\n",
printf("
errno = 0;
x = 15.0;
n = 10000;
y = ldexp (x, n);
if (errno)
printf("For a number = %f and an exponent = %d\n",
printf("
perror("Error");
perror("Error");
perror("Error");
floating-point value
integer exponent
x, n);
x, n, y);
x, n);
x, n, y);
x, n);
x, n, y);
ldexp(%f, %d) = %f\n\n",
ldexp(%f, %d) = %f\n\n",
ldexp(%f, %d) = %f\n\n",
/* for ldexp
DS51456E-page 169
*/
*/