C program to Copy the Contents of One file into another using fputc.
⦁ The C library function int fputc(int char, FILE *stream) writes a character specified by the argument char to the specified stream and advances the position indicator for the stream.
⦁ Following is the declaration for fputc( ) function.
int fputc(int char, FILE *stream)
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#include<stdio.h>
#include<process.h>
void main( );
{
FILE *fp1,*fp2;
char a;
clrscr( );
fp1 = fopen("test.txt","r");
if (fp1 == NULL)
{
puts("cannot open this file");
exit(1);
}
fp2 = fopen("test1.txt","w");
if (fp2 == NULL)
{
puts(" Not able to open this file");
fclose(fp1);
exit(1);
}
do
{
a = fgetc(fp1);
fputc(a,fp2);
} while (a!=EOF);
fcloseall( );
getch( );
}
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Explanation
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⦁ We have two files, opening one file in read mode and another one on write mode.
fp1 = fopen("test.txt","r"); and
fp2 = fopen("test.txt","w");
⦁ Check whether file is opened successfully or not using NULL check.
if(fp2 == NULL)
{
// File is Not Opened Successfully
}
⦁ If everything is ok then reading file character by character and writing on file character by character.
a = fgetc(fp1);
⦁ If we get EOF character then process of writing on the file will be terminated.
do
{
a = fgetc(fp1);
fputc(a,fp2);
} while(a! = EOF);
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Output
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Content will be written Successfullty to file.
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