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16-Bit Language Tools Libraries
rewind
Description:
Include:
Prototype:
Resets the file pointer to the beginning of the file.
<stdio.h>
void rewind(FILE * stream );
Argument:
stream
stream to reset the file pointer
Remarks:
The function calls fseek(stream, 0L, SEEK_SET) and then clears
the error indicator for the given stream.
Example:
#include <stdio.h> /*
/*
/*
/*
for rewind, fopen,
fscanf, fclose,
fprintf, printf,
FILE, NULL
*/
*/
*/
*/
int main(void)
{
FILE *myfile;
char s[] = "cookies";
int x = 10;
if ((myfile = fopen("afile", "w+")) == NULL)
printf("Cannot open afile\n");
else
{
fprintf(myfile, "%d %s", x, s);
printf("I have %d %s.\n", x, s);
/* set pointer to beginning of file */
rewind(myfile);
fscanf(myfile, "%d %s", &x, &s);
printf("I ate %d %s.\n", x, s);
fclose(myfile);
}
}
Output:
I have 10 cookies.
I ate 10 cookies.
DS51456E-page 78
? 2008 Microchip Technology Inc.
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