SW006014 Microchip Technology, SW006014 Datasheet - Page 60

• 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 56
fopen
Description:
Include:
Prototype:
Arguments:
Return Value:
Remarks:
Example:
Opens a file.
<stdio.h>
FILE *fopen(const char *filename, const char *mode);
filename
mode
Returns a pointer to the open stream. If the function fails a null pointer
is returned.
Following are the types of file access:
r -
w -
be overwritten.)
a -
doesn't exist.)
rb -
wb -
will be overwritten.)
ab -
doesn't exist.)
r+ -
w+ -
existing file will be overwritten.)
a+ -
created if it doesn't exist.)
r+b or rb+ - opens an existing binary file for reading and writing.
w+b or wb+ - opens an empty binary file for reading and writing. (An
existing file will be overwritten.)
a+b or ab+ - opens a binary file for reading and appending. (A file is
created if it doesn't exist.)
#include <stdio.h> /* for fopen, fclose, */
int main(void)
{
FILE *myfile1, *myfile2;
int y;
name of the file
type of access permitted
opens an existing text file for reading
opens an empty text file for writing. (An existing file will
opens a text file for appending. (A file is created if it
opens an existing binary file for reading.
opens an empty binary file for writing. (An existing file
opens a binary file for appending. (A file is created if it
opens an existing text file for reading and writing.
opens an empty text file for reading and writing. (An
opens a text file for reading and appending. (A file is
/* printf, FILE,
/* NULL, EOF
© 2008 Microchip Technology Inc.
*/
*/