SW006014 Microchip Technology, SW006014 Datasheet - Page 56

• 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 52
ferror
Description:
Include:
Prototype:
Argument:
Return Value:
Example:
Tests if error indicator is set.
<stdio.h>
int ferror(FILE *stream);
stream
Returns a non-zero value if error indicator is set; otherwise, returns a
zero.
/* This program tries to write to a file that is */
/* readonly. This causes the error indicator to
/* be set.
/* the error indicator and find the error. The
/* function clearerr is used to reset the error
/* indicator so the next time ferror is called
/* it will not report an error.
#include <stdio.h> /* for ferror, clearerr, */
int main(void)
{
}
Output:
Error
Error indicator reset
FILE *myfile;
if ((myfile = fopen("sampclearerr.c", "r")) ==
else
{
}
printf("Cannot open file\n");
fprintf(myfile, "Write this line to the "
if (ferror(myfile))
else
clearerr(myfile);
if (ferror(myfile))
else
fclose(myfile);
printf("Error\n");
printf("No error\n");
printf("Still has Error\n");
printf("Error indicator reset\n");
NULL)
pointer to FILE structure
The function ferror is used to check */
"file.\n");
/* printf, fprintf,
/* fopen, fclose,
/* FILE, NULL
© 2008 Microchip Technology Inc.
*/
*/
*/
*/
*/
*/
*/
*/