| struct _XtTextSource { |
| /* ... */ |
| void (* SetSelection)(); |
| /* ... */ |
| }; |
| |
| typedef struct _XtTextSource *XtTextSource; |
| |
| typedef struct _TextPart { |
| XtTextSource source; |
| /* ... */ |
| } TextPart; |
| |
| typedef struct _TextRec { |
| /* ... */ |
| TextPart text; |
| } TextRec; |
| |
| typedef struct _TextRec *TextWidget; |
| |
| |
| void XtTextUnsetSelection(w) |
| TextWidget w; /* original is: Widget w; */ |
| { |
| register TextWidget ctx = (TextWidget) w; |
| void (*nullProc)() = 0; |
| |
| /* |
| * the following line causes the error, when optimizing: |
| */ |
| |
| if (ctx->text.source->SetSelection != nullProc) { |
| |
| foo(); |
| |
| } |
| } |