| 1 | // I made this example after noting that I was unable to display an unsized |
|---|
| 2 | // static class array. It turns out that gcc 4.2 will emit DWARF that correctly |
|---|
| 3 | // describes the PointType, but it will incorrectly emit debug info for the |
|---|
| 4 | // "g_points" array where the following things are wrong: |
|---|
| 5 | // - the DW_TAG_array_type won't have a subrange info |
|---|
| 6 | // - the DW_TAG_variable for "g_points" won't have a valid byte size, so even |
|---|
| 7 | // though we know the size of PointType, we can't infer the actual size |
|---|
| 8 | // of the array by dividing the size of the variable by the number of |
|---|
| 9 | // elements. |
|---|
| 10 | |
|---|
| 11 | #include <stdio.h> |
|---|
| 12 | |
|---|
| 13 | typedef struct PointType |
|---|
| 14 | { |
|---|
| 15 | int x, y; |
|---|
| 16 | } PointType; |
|---|
| 17 | |
|---|
| 18 | class A |
|---|
| 19 | { |
|---|
| 20 | public: |
|---|
| 21 | static PointType g_points[]; |
|---|
| 22 | }; |
|---|
| 23 | |
|---|
| 24 | // Make sure similar names don't confuse us: |
|---|
| 25 | |
|---|
| 26 | class AA |
|---|
| 27 | { |
|---|
| 28 | public: |
|---|
| 29 | static PointType g_points[]; |
|---|
| 30 | }; |
|---|
| 31 | |
|---|
| 32 | PointType A::g_points[] = |
|---|
| 33 | { |
|---|
| 34 | { .x: 1, .y: 2 }, |
|---|
| 35 | { .x: 11, .y: 22 } |
|---|
| 36 | }; |
|---|
| 37 | static PointType g_points[] = |
|---|
| 38 | { |
|---|
| 39 | { .x: 3, .y: 4 }, |
|---|
| 40 | { .x: 33, .y: 44 } |
|---|
| 41 | }; |
|---|
| 42 | |
|---|
| 43 | PointType AA::g_points[] = |
|---|
| 44 | { |
|---|
| 45 | { .x: 5, .y: 6 }, |
|---|
| 46 | { .x: 55, .y: 66 } |
|---|
| 47 | }; |
|---|
| 48 | |
|---|
| 49 | int |
|---|
| 50 | main (int argc, char const *argv[]) |
|---|
| 51 | { |
|---|
| 52 | const char *hello_world = "Hello, world!" ; |
|---|
| 53 | printf (format: "A::g_points[1].x = %i\n" , A::g_points[1].x); // Set break point at this line. |
|---|
| 54 | printf (format: "AA::g_points[1].x = %i\n" , AA::g_points[1].x); |
|---|
| 55 | printf (format: "::g_points[1].x = %i\n" , g_points[1].x); |
|---|
| 56 | printf (format: "%s\n" , hello_world); |
|---|
| 57 | return 0; |
|---|
| 58 | } |
|---|
| 59 | |
|---|
