SW006014 Microchip Technology, SW006014 Datasheet - Page 64

• 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

DS51456E-page 60
fread
Description:
Include:
Prototype:
Arguments:
Return Value:
Remarks:
Example:
Reads data from the stream.
<stdio.h>
size_t fread(void *ptr, size_t size, size_t nelem,
FILE *stream);
ptr
size
nelem
stream
Returns the number of complete elements read up to nelem whose
size is specified by size.
The function reads characters from a given stream into the buffer
pointed to by ptr until the function stores size * nelem characters
or sets the end-of-file or error indicator. fread returns n/size where n is
the number of characters it read. If n is not a multiple of size, the value
of the last element is indeterminate. If the function sets the error indica-
tor, the file-position indicator is indeterminate.
#include <stdio.h> /* for fread, fwrite,
int main(void)
{
}
FILE *buf;
int x, numwrote, numread;
double nums[10], readnums[10];
if ((buf = fopen("afile.out", "w+")) != NULL)
{
else
for (x = 0; x < 10; x++)
{
}
numwrote = fwrite(nums, sizeof(double),
printf("Wrote %d numbers\n\n", numwrote);
fclose(buf);
printf("Cannot open afile.out\n");
nums[x] = 10.0/(x + 1);
printf("10.0/%d = %f\n", x+1, nums[x]);
pointer to the storage buffer
size of item
maximum number of items to be read
pointer to the stream
/* printf, fopen, fclose, */
/* sizeof, FILE, NULL
10, buf);
© 2008 Microchip Technology Inc.
*/
*/