copy C clone complete?

c_programming/files/copy.c

@@ -1,2 +1,32 @@
+#include <stdio.h>
 
-FILE *input = fopen("in.txt", "r");
+int main(void)
+{
+    FILE *input = fopen("in.txt", "r");
+    if (input == NULL)
+    {
+        perror("Failed to open in.txt");
+        return 1;
+    }
+    FILE *output = fopen("out.txt", "w");
+    if (output == NULL)
+    {
+        perror("Failed to open out.txt")
+        fclose(input);
+        return 1;
+    }
+    char c;
+    while (fread(&c, sizeof(char), 1, input) != 0)
+    {
+        fwrite(&c, sizeof(char), 1, output);
+    }
+}
+
+/*
+TODO:
++ clone: clone git repository and start working on copy.c
+- first: go through part 3 of cs50 week 4 memory section.pdf
+- make: get copy.c compiling with make
+- complete: fix all problems and ensure the demo program works as intended
+- wait: if I need to go work on another file, it will go in a wait: task.
+*/