I am a student taking an introductory C course and have our first C midterm coming up. Our test environment would store our actions and printf output to a text file. However, our TA suggested we write to a file ourselves using fprintf just in-case.
Is there a very simple way I can copy my terminal/console output and input (what I enter in after scanf ) to a text file like output.txt?
I tried
freopen("output.txt","w",stdout);
but that won't write my scanf input to the text file.
Can anyone help?
Don't use scanf(); Use fgets(); An example:
#include <stdio.h>
#include <stdlib.h>
#define Contents_Size 1000
int main()
{
char contents[Contents_Size];
//Opening the file
FILE * fp;
fp = fopen("\myfile.txt", "w"); //"w" = write
//If there is an error
if(fp == NULL)
{
//Exit
printf("Error!\n");
exit(EXIT_FAILURE);
}
//This part require your input
printf("Enter the contents of file: \n");
fgets(contents, Contents_Size, stdin);
//Write your input in file
fputs(contents, fp);
//Close the file
fclose(fp);
return 0;
}
fgest() will copy your input in contents[] and fputs() will paste every char of contents[] in your file.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.