From f961456b29a6ca2bd386a672d2ea2782c925c72f Mon Sep 17 00:00:00 2001
From: Damien George
Date: Tue, 20 Oct 2015 13:27:14 +0100
Subject: lib/mp-readline: Add n_chars argument to
 mp_hal_erase_line_from_cursor.

If VT100 support is not available then a given implementation of
mp_hal_erase_line_from_cursor might need to know the number of characters
to erase.

This patch does not change generated code when VT100 is supported, since
compiler can optimise away the argument.
---
 windows/windows_mphal.c | 2 +-
 windows/windows_mphal.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'windows')

diff --git a/windows/windows_mphal.c b/windows/windows_mphal.c
index f2f8cd952..db03571ba 100644
--- a/windows/windows_mphal.c
+++ b/windows/windows_mphal.c
@@ -92,7 +92,7 @@ void mp_hal_move_cursor_back(uint pos) {
     SetConsoleCursorPosition(con_out, info.dwCursorPosition);
 }
 
-void mp_hal_erase_line_from_cursor() {
+void mp_hal_erase_line_from_cursor(uint n_chars_to_erase) {
     assure_conout_handle();
     CONSOLE_SCREEN_BUFFER_INFO info;
     GetConsoleScreenBufferInfo(con_out, &info);
diff --git a/windows/windows_mphal.h b/windows/windows_mphal.h
index b9ed67e71..8173d93ec 100644
--- a/windows/windows_mphal.h
+++ b/windows/windows_mphal.h
@@ -29,4 +29,4 @@
 #define MICROPY_HAL_HAS_VT100 (0)
 
 void mp_hal_move_cursor_back(unsigned int pos);
-void mp_hal_erase_line_from_cursor();
+void mp_hal_erase_line_from_cursor(unsigned int n_chars_to_erase);
-- 
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