From: Tom Tromey Date: Sun, 14 Jul 2019 15:07:10 +0000 (-0600) Subject: Remove some checks of .empty() X-Git-Tag: binutils-2_33~77 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0670413d0eb264302e10a1baa163bc9c8c279a21;p=external%2Fbinutils.git Remove some checks of .empty() A few methods in tui_data_window check whether the contents are empty; but all the callers already check this, so these calls can be removed. gdb/ChangeLog 2019-08-30 Tom Tromey * tui/tui-regs.c (tui_data_window::last_regs_line_no) (tui_data_window::display_registers_from) (tui_data_window::display_reg_element_at_line) (tui_data_window::display_registers_from_line): Remove checks of "empty". --- diff --git a/gdb/ChangeLog b/gdb/ChangeLog index e5f3f21..c8b69f4 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,13 @@ 2019-08-30 Tom Tromey + * tui/tui-regs.c (tui_data_window::last_regs_line_no) + (tui_data_window::display_registers_from) + (tui_data_window::display_reg_element_at_line) + (tui_data_window::display_registers_from_line): Remove checks of + "empty". + +2019-08-30 Tom Tromey + * tui/tui-regs.h (struct tui_data_window) : Don't declare. * tui/tui-regs.c (tui_data_window::show_registers): Call diff --git a/gdb/tui/tui-regs.c b/gdb/tui/tui-regs.c index 7bac19d..636ae10 100644 --- a/gdb/tui/tui-regs.c +++ b/gdb/tui/tui-regs.c @@ -98,14 +98,9 @@ tui_get_register (struct frame_info *frame, int tui_data_window::last_regs_line_no () const { - int num_lines = (-1); - - if (!regs_content.empty ()) - { - num_lines = regs_content.size () / regs_column_count; - if (regs_content.size () % regs_column_count) - num_lines++; - } + int num_lines = regs_content.size () / regs_column_count; + if (regs_content.size () % regs_column_count) + num_lines++; return num_lines; } @@ -245,74 +240,71 @@ tui_data_window::show_register_group (struct reggroup *group, void tui_data_window::display_registers_from (int start_element_no) { - if (!regs_content.empty ()) + int j, item_win_width, cur_y; + + int max_len = 0; + for (auto &&data_item_win : regs_content) { - int j, item_win_width, cur_y; + const char *p; + int len; - int max_len = 0; - for (auto &&data_item_win : regs_content) - { - const char *p; - int len; - - len = 0; - p = data_item_win.content.get (); - if (p != 0) - len = strlen (p); - - if (len > max_len) - max_len = len; - } - item_win_width = max_len + 1; - int i = start_element_no; - - regs_column_count = (width - 2) / item_win_width; - if (regs_column_count == 0) - regs_column_count = 1; - item_win_width = (width - 2) / regs_column_count; - - /* Now create each data "sub" window, and write the display into - it. */ - cur_y = 1; - while (i < regs_content.size () - && cur_y <= viewport_height) + len = 0; + p = data_item_win.content.get (); + if (p != 0) + len = strlen (p); + + if (len > max_len) + max_len = len; + } + item_win_width = max_len + 1; + int i = start_element_no; + + regs_column_count = (width - 2) / item_win_width; + if (regs_column_count == 0) + regs_column_count = 1; + item_win_width = (width - 2) / regs_column_count; + + /* Now create each data "sub" window, and write the display into + it. */ + cur_y = 1; + while (i < regs_content.size () + && cur_y <= viewport_height) + { + for (j = 0; + j < regs_column_count && i < regs_content.size (); + j++) { - for (j = 0; - j < regs_column_count && i < regs_content.size (); - j++) + struct tui_data_item_window *data_item_win; + + /* Create the window if necessary. */ + data_item_win = ®s_content[i]; + if (data_item_win->handle != NULL + && (data_item_win->height != 1 + || data_item_win->width != item_win_width + || data_item_win->origin.x != (item_win_width * j) + 1 + || data_item_win->origin.y != cur_y)) { - struct tui_data_item_window *data_item_win; - - /* Create the window if necessary. */ - data_item_win = ®s_content[i]; - if (data_item_win->handle != NULL - && (data_item_win->height != 1 - || data_item_win->width != item_win_width - || data_item_win->origin.x != (item_win_width * j) + 1 - || data_item_win->origin.y != cur_y)) - { - tui_delete_win (data_item_win->handle); - data_item_win->handle = 0; - } + tui_delete_win (data_item_win->handle); + data_item_win->handle = 0; + } - if (data_item_win->handle == NULL) - { - data_item_win->height = 1; - data_item_win->width = item_win_width; - data_item_win->origin.x = (item_win_width * j) + 1; - data_item_win->origin.y = cur_y; - data_item_win->make_visible (true); - scrollok (data_item_win->handle, FALSE); - } - touchwin (data_item_win->handle); - - /* Get the printable representation of the register - and display it. */ - tui_display_register (data_item_win); - i++; /* Next register. */ + if (data_item_win->handle == NULL) + { + data_item_win->height = 1; + data_item_win->width = item_win_width; + data_item_win->origin.x = (item_win_width * j) + 1; + data_item_win->origin.y = cur_y; + data_item_win->make_visible (true); + scrollok (data_item_win->handle, FALSE); } - cur_y++; /* Next row. */ + touchwin (data_item_win->handle); + + /* Get the printable representation of the register + and display it. */ + tui_display_register (data_item_win); + i++; /* Next register. */ } + cur_y++; /* Next row. */ } } @@ -322,27 +314,24 @@ void tui_data_window::display_reg_element_at_line (int start_element_no, int start_line_no) { - if (!regs_content.empty ()) - { - int element_no = start_element_no; + int element_no = start_element_no; - if (start_element_no != 0 && start_line_no != 0) - { - int last_line_no, first_line_on_last_page; - - last_line_no = last_regs_line_no (); - first_line_on_last_page = last_line_no - (height - 2); - if (first_line_on_last_page < 0) - first_line_on_last_page = 0; - - /* If the element_no causes us to scroll past the end of the - registers, adjust what element to really start the - display at. */ - if (start_line_no > first_line_on_last_page) - element_no = first_reg_element_no_inline (first_line_on_last_page); - } - display_registers_from (element_no); + if (start_element_no != 0 && start_line_no != 0) + { + int last_line_no, first_line_on_last_page; + + last_line_no = last_regs_line_no (); + first_line_on_last_page = last_line_no - (height - 2); + if (first_line_on_last_page < 0) + first_line_on_last_page = 0; + + /* If the element_no causes us to scroll past the end of the + registers, adjust what element to really start the + display at. */ + if (start_line_no > first_line_on_last_page) + element_no = first_reg_element_no_inline (first_line_on_last_page); } + display_registers_from (element_no); } /* See tui-regs.h. */ @@ -351,34 +340,30 @@ int tui_data_window::display_registers_from_line (int line_no) { check_and_display_highlight_if_needed (); - if (!regs_content.empty ()) - { - int element_no; - if (line_no < 0) - line_no = 0; - else + int element_no; + + if (line_no < 0) + line_no = 0; + else + { + /* Make sure that we don't display off the end of the + registers. */ + if (line_no >= last_regs_line_no ()) { - /* Make sure that we don't display off the end of the - registers. */ - if (line_no >= last_regs_line_no ()) - { - line_no = line_from_reg_element_no (regs_content.size () - 1); - if (line_no < 0) - line_no = 0; - } + line_no = line_from_reg_element_no (regs_content.size () - 1); + if (line_no < 0) + line_no = 0; } - - element_no = first_reg_element_no_inline (line_no); - if (element_no < regs_content.size ()) - display_reg_element_at_line (element_no, line_no); - else - line_no = (-1); - - return line_no; } - return (-1); /* Nothing was displayed. */ + element_no = first_reg_element_no_inline (line_no); + if (element_no < regs_content.size ()) + display_reg_element_at_line (element_no, line_no); + else + line_no = (-1); + + return line_no; }