gdb/testsuite/gdb.base/pointers.c

   1
   2 #if !defined (__STDC__) && !defined (_AIX)
   3 #define signed  /**/
   4 #endif
   5
   6 char            v_char;
   7 signed char     v_signed_char;
   8 unsigned char   v_unsigned_char;
   9
  10 short           v_short;
  11 signed short    v_signed_short;
  12 unsigned short  v_unsigned_short;
  13
  14 int             v_int;
  15 signed int      v_signed_int;
  16 unsigned int    v_unsigned_int;
  17
  18 long            v_long;
  19 signed long     v_signed_long;
  20 unsigned long   v_unsigned_long;
  21
  22 float           v_float;
  23 double          v_double;
  24
  25
  26
  27 char            *v_char_pointer;
  28 signed char     *v_signed_char_pointer;
  29 unsigned char   *v_unsigned_char_pointer;
  30
  31 short           *v_short_pointer;
  32 signed short    *v_signed_short_pointer;
  33 unsigned short  *v_unsigned_short_pointer;
  34
  35 int             *v_int_pointer;
  36 int             *v_int_pointer2;
  37 signed int      *v_signed_int_pointer;
  38 unsigned int    *v_unsigned_int_pointer;
  39
  40 long            *v_long_pointer;
  41 signed long     *v_signed_long_pointer;
  42 unsigned long   *v_unsigned_long_pointer;
  43
  44 float           *v_float_pointer;
  45 double          *v_double_pointer;
  46
  47
  48 char            v_char_array[2];
  49 signed char     v_signed_char_array[2];
  50 unsigned char   v_unsigned_char_array[2];
  51
  52 short           v_short_array[2];
  53 signed short    v_signed_short_array[2];
  54 unsigned short  v_unsigned_short_array[2];
  55
  56 int             v_int_array[2];
  57 signed int      v_signed_int_array[2];
  58 unsigned int    v_unsigned_int_array[2];
  59
  60 long            v_long_array[2];
  61 signed long     v_signed_long_array[2];
  62 unsigned long   v_unsigned_long_array[2];
  63
  64 float           v_float_array[2];
  65 double          v_double_array[2];
  66
  67 int matrix[2][3] = { { 0, 1, 2}, {3, 4, 5}};
  68 int (*rptr)[3] = matrix;
  69
  70 float ** ptr_to_ptr_to_float;
  71
  72 int y;
  73
  74
  75 typedef long k[5];
  76
  77 typedef struct {
  78   k array_variable;
  79 } S;
  80
  81 S instance;
  82
  83 /* Do nothing function used for forcing some of the above variables to
  84    be referenced by the program source.  If the variables are not
  85    referenced, some linkers will remove the symbol from the symbol
  86    table making it impossible to refer to the variable in gdb.  */
  87 void usevar (void *var) {}
  88
  89 int main ()
  90 {
  91   void dummy();
  92   int more_code();
  93
  94   dummy();
  95
  96   more_code ();
  97
  98   usevar (&v_int_pointer2);
  99   usevar (&rptr);
 100   usevar (&y);
 101
 102   return 0;
 103
 104 }
 105
 106 void dummy()
 107 {
 108
 109
 110   v_char = 0;
 111   v_signed_char = 1;
 112   v_unsigned_char = 2;
 113
 114   v_short = 3;
 115   v_signed_short = 4;
 116   v_unsigned_short = 5;
 117
 118   v_int = 6;
 119   v_signed_int = 7;
 120   v_unsigned_int = 8;
 121
 122   v_long = 9;
 123   v_signed_long = 10;
 124   v_unsigned_long = 11;
 125
 126   v_float = 100.0;
 127   v_double = 200.0;
 128
 129
 130
 131   v_char_pointer = &v_char;
 132   v_signed_char_pointer = &v_signed_char;
 133   v_unsigned_char_pointer = &v_unsigned_char;
 134
 135   v_short_pointer = &v_short;
 136   v_signed_short_pointer = &v_signed_short;
 137   v_unsigned_short_pointer = &v_unsigned_short;
 138
 139   v_int_pointer = &v_int;
 140   v_signed_int_pointer = &v_signed_int;
 141   v_unsigned_int_pointer = &v_unsigned_int;
 142
 143   v_long_pointer = &v_long;
 144   v_signed_long_pointer = &v_signed_long;
 145   v_unsigned_long_pointer = &v_unsigned_long;
 146
 147   v_float_pointer = &v_float;
 148   v_double_pointer = &v_double;
 149
 150   ptr_to_ptr_to_float = &v_float_pointer;
 151
 152
 153   v_char_array[0] = v_char;
 154   v_signed_char_array[0] = v_signed_char;
 155   v_unsigned_char_array[0] = v_unsigned_char;
 156
 157   v_short_array[0] = v_short;
 158   v_signed_short_array[0] = v_signed_short;
 159   v_unsigned_short_array[0] = v_unsigned_short;
 160
 161   v_int_array[0] = v_int;
 162   v_int_array[1] = v_int * 3;
 163
 164   v_signed_int_array[0] = v_signed_int;
 165   v_unsigned_int_array[0] = v_unsigned_int;
 166
 167   v_long_array[0] = v_long;
 168   v_signed_long_array[0] = v_signed_long;
 169   v_unsigned_long_array[0] = v_unsigned_long;
 170
 171   v_float_array[0] = v_float;
 172   v_double_array[0] = v_double;
 173
 174 }
 175
 176 void marker1 ()
 177 {
 178 }
 179
 180 int more_code()
 181 {
 182     char C, *pC, **ppC, ***pppC, ****ppppC, *****pppppC, ******ppppppC;
 183     unsigned char UC, *pUC;
 184     short S, *pS;
 185     unsigned short US, *pUS;
 186     int I, *pI;
 187     unsigned int UI, *pUI;
 188     long L, *pL;
 189     unsigned long UL, *pUL;
 190     float F, *pF;
 191     double D, *pD;
 192
 193     C = 'A';
 194     UC = 21;
 195     S = -14;
 196     US = 7;
 197     I = 102;
 198     UI = 1002;
 199     L = -234;
 200     UL = 234;
 201     F = 1.25E10;
 202     D = -1.25E-37;
 203     pC = &C;
 204     ppC = &pC;
 205     pppC = &ppC;
 206     ppppC = &pppC;
 207     pppppC = &ppppC;
 208     ppppppC = &pppppC;
 209     pUC = &UC;
 210     pS = &S;
 211     pUS = &US;
 212     pI = &I;
 213     pUI = &UI;
 214     pL = &L;
 215     pUL = &UL;
 216     pF = &F;
 217     pD = &D;
 218
 219     marker1();
 220     return 0;
 221 }