Backport: Optimize SCI_GETCURLINE by avoiding per-character calls.

Backport of changeset 7504:b46332260eee.

1 files changed, 3 insertions, 5 deletions

diff --git a/src/Editor.cxx b/src/Editor.cxx
index e024804bd..ffbf4e0ef 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -6434,11 +6434,9 @@ sptr_t Editor::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 			}
 			PLATFORM_ASSERT(wParam > 0);
 			char *ptr = CharPtrFromSPtr(lParam);
-			unsigned int iPlace = 0;
-			for (Sci::Position iChar = lineStart; iChar < lineEnd && iPlace < wParam - 1; iChar++) {
-				ptr[iPlace++] = pdoc->CharAt(iChar);
-			}
-			ptr[iPlace] = '\0';
+			const Sci::Position len = std::min<uptr_t>(lineEnd - lineStart, wParam - 1);
+			pdoc->GetCharRange(ptr, lineStart, len);
+			ptr[len] = '\0';
 			return sel.MainCaret() - lineStart;
 		}