SW006014 Microchip Technology, SW006014 Datasheet - Page 86

• 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 82
setvbuf
Description:
Include:
Prototype:
Arguments:
Return Value:
Remarks:
Example:
Defines the stream to be buffered and the buffer size.
<stdio.h>
int setvbuf(FILE *stream, char *buf, int mode,
size_t size);
stream
buf
mode
size
Returns 0 if successful
setvbuf must be called after fopen but before any other function
calls that operate on the stream. For mode use one of the following:
_IOFBF – for full buffering
_IOLBF – for line buffering
_IONBF – for no buffering
#include <stdio.h> /* for setvbuf, fopen, */
int main(void)
{
}
Output:
myfile1 has no buffering
myfile2 has a buffer of 256 characters
FILE *myfile1, *myfile2;
char buf[256];
if ((myfile1 = fopen("afile1", "w+")) != NULL)
{
}
fclose(myfile1);
if ((myfile2 = fopen("afile2", "w+")) != NULL)
{
}
fclose(myfile2);
if (setvbuf(myfile2, buf, _IOFBF, sizeof(buf)) ==
if (setvbuf(myfile1, NULL, _IONBF, 0) == 0)
else
else
printf("myfile1 has no buffering\n");
printf("Unable to define buffer stream "
printf("myfile2 has a buffer of %d "
printf("Unable to define buffer stream "
0)
pointer to the open stream
user allocated buffer
type of buffering
size of buffer
"and/or size\n");
"characters\n", sizeof(buf));
"and/or size\n");
/* printf, FILE, NULL, */
/* _IONBF, _IOFBF
© 2008 Microchip Technology Inc.
*/