{{keywords>wiki library source code example reference}}

===== putc =====
<code c>
    int putc(int char, FILE *stream); 
</code>

put char into a stream.

===== C Sourcecode Example =====
<code c>
/* 
 * putc example code
 * http://code-reference.com/c/stdio.h/putc 
 */

#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */

int main( void )
{
  int c;
  FILE *stream, *destination;
  
  stream = fopen("test.txt", "r");
  destination = fopen("test_copy.txt","w");

  if (stream == 0 || destination == 0) { 
     perror("cannot open stream");
     return 1;
   }
  
    c = getc(stream);
    while (c != EOF)
    {
      putc(c, stdout);
      putc(c, destination);
      c = getc(stream); 
    }
  
  fclose(stream);
  fclose(destination);
  return 0;
}

 
</code>

=== content of test.txt ===
<code c>
Test example file for code-reference.com putc source code
</code>

==== output ====
    ./putc 
    Test example file for code-reference.com putc source code

output of test_copy.txt
<code c>
Test example file for code-reference.com putc source code
</code>

**see also**
[[c:stdio.h:getc|]]