/******************************************************************************
Welcome to GDB Online.
GDB online is an online compiler and debugger tool for C, C++, Python, PHP, Ruby,
Perl, Swift, Prolog, Javascript, Pascal, HTML, CSS, JS
Code, Compile, Run and Debug online from anywhere in world.
*******************************************************************************/
#include <stdio.h>
int main()
{
char line[256];
FILE* input = fopen("input.txt", "r");
if(!input) {
printf("could not open input.txt for read");
} else {
FILE* output = fopen("output.txt", "w");
if(!output) {
printf("could not open output.txt for write");
} else {
while (fgets(line, sizeof(line), input)) {
/* note that fgets don't strip the terminating \n, checking its
presence would allow to handle lines longer that sizeof(line) */
fprintf(output, "%s", line);
}
fclose(output);
}
fclose(input);
}
FILE* test = fopen("output.txt", "r");
if(!test) {
printf("could not open output.txt for read");
} else {
while (fgets(line, sizeof(line), test)) {
/* note that fgets don't strip the terminating \n, checking its
presence would allow to handle lines longer that sizeof(line) */
printf("%s", line);
}
fclose(test);
}
return 0;
}
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