Piping terminal output to file from within C program -

i gets output stdout saved in file in c code. know can calling process on command line , piping file:

 myprogram.exe 1>logfile.txt

for example. wondering if there way within c code itself. there function in printf() family can output both terminal , specified file same arguments?

if not, syntax required write own printf()-style function calls both printf() , fprintf() within it, using same argument style printf()?

you can use fprintf() function, quite similar printf() in way works.

here example:

file *fp; int var = 5; fp = fopen("file_name.txt", "w");// "w" means going write on file fprintf(fp, "writting file. int variable: %d", var);

the output on file this:

this being written in file. int variable: 5

n.b: opening file using w parameter destroy file's content every time open it.

for writing file have use file operation commands, not possible write file using printf (it prints stdout). can use:

sprintf(buf,"%d",var);  //for storing in buffer printf(buf);       //output stdout fputs(buf, fp);   //output file

Braziel