putchar, getchar

Author: tyfkda

libsrc/stdio/getchar.c

@@ -0,0 +1,8 @@
+#include "stdio.h"
+
+#include "./_file.h"
+#undef getchar
+
+int getchar(void) {
+  return fgetc(stdin);
+}

libsrc/stdio/putchar.c

@@ -1,11 +1,10 @@
 #include "stdio.h"
 
-#if defined(__GNUC__)
 #include "./_file.h"
 // gcc replaces `printf("%c", c)` into `putchar(c)` implicitly.
 #undef putchar
+
 // Result: Success => c, Failure => EOF
 int putchar(int c) {
   return _fputc(c, stdout);
 }
-#endif