core: move `Int::isatty` to `file`

[nit.git] / lib / core / file.nit

diff --git a/lib/core/file.nit b/lib/core/file.nit
index 26f7398..261dc7d 100644 (file)
--- a/lib/core/file.nit
+++ b/lib/core/file.nit
@@ -306,6 +306,9 @@ redef class Int
        private fun fd_to_stream(mode: CString): NativeFile `{
                return fdopen((int)self, mode);
        `}
+
+       # Does the file descriptor `self` refer to a terminal?
+       fun isatty: Bool `{ return isatty(self); `}
 end
 
 # Constant for read-only file streams