Problem report #130: base/src/emacs/src/xterm.c (x_draw_glyph_string); UNINIT

[Dan Nicolaescu]

CID: 130
Checker: UNINIT (help)
File: base/src/emacs/src/xterm.c
Function: x_draw_glyph_string
Description: Using uninitialized value "position"

Event var_decl: Declared variable "position" without initializer
Also see events: [uninit_use]

2729              unsigned long thickness, position;
2730              int y;
2731    

At conditional (1): "(s)->prev != 0" taking true path
At conditional (2): "(((s)->prev)->face)->underline_p != 0" taking false path

2732              if (s->prev && s->prev->face->underline_p)
2733                {
2734                  /* We use the same underline style as the previous one.  
*/
2735                  thickness = s->prev->underline_thickness;
2736                  position = s->prev->underline_position;
2737                }
2738              else
2739                {
2740                  /* Get the underline thickness.  Default is 1 pixel.  */

At conditional (3): "(s)->font != 0" taking false path

2741                  if (s->font && s->font->underline_thickness > 0)
2742                    thickness = s->font->underline_thickness;
2743                  else
2744                    thickness = 1;

At conditional (4): "x_underline_at_descent_line != 0" taking false path

2745                  if (x_underline_at_descent_line)
2746                    position = (s->height - thickness) - (s->ybase - s->y);
2747                  else
2748                    {
2749                      /* Get the underline position.  This is the 
recommended
2750                         vertical offset in pixels from the baseline to the 
top of
2751                         the underline.  This is a signed value according 
to the
2752                         specs, and its default is
2753    
2754                         ROUND ((maximum descent) / 2), with
2755                         ROUND(x) = floor (x + 0.5)  */
2756    

At conditional (5): "x_use_underline_position_properties != 0" taking true path
At conditional (6): "(s)->font != 0" taking false path

2757                      if (x_use_underline_position_properties
2758                          && s->font && s->font->underline_position >= 0)
2759                        position = s->font->underline_position;

At conditional (7): "(s)->font != 0" taking false path

2760                      else if (s->font)
2761                        position = (s->font->descent + 1) / 2;
2762                    }

Event uninit_use: Using uninitialized value "position"
Also see events: [var_decl]

2763                  position = max (position, underline_minimum_offset);
2764                }