SW006014 Microchip Technology, SW006014 Datasheet - Page 71

• 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.
ftell
Description:
Include:
Prototype:
Argument:
Return Value:
Example:
Gets the current position of a file pointer.
<stdio.h>
long ftell(FILE *stream);
stream
Returns the position of the file pointer if successful; otherwise, returns
-1.
#include <stdio.h> /* for ftell, fread,
int main(void)
{
}
Output:
Read some characters:
The current position of the file pointer is 29
FILE *myfile;
char s[75];
long y;
myfile = fopen("afile.out", "w+");
if (myfile == NULL)
else
{
}
printf("Cannot open afile.out\n");
fprintf(myfile,"This is a very long sentence "
fclose(myfile);
if ((myfile = fopen("afile.out", "rb")) != NULL)
{
}
printf("Read some characters:\n");
fread(s, sizeof(char), 29, myfile);
printf("\t\"%s\"\n", s);
y = ftell(myfile);
printf("The current position of the "
fclose(myfile);
"This is a very long sentence "
stream in which to get the current file position
"file pointer is %ld\n", y);
"afile.out for testing.");
/* fprintf, printf,
/* fopen, fclose, sizeof, */
/* FILE, NULL */
"for input into the file named "
DS51456E-page 67
*/
*/