Alc/vector.h

   1 #ifndef AL_VECTOR_H
   2 #define AL_VECTOR_H
   3
   4 #include <stdlib.h>
   5
   6 #include <AL/al.h>
   7
   8 #include "almalloc.h"
   9
  10 /* "Base" vector type, designed to alias with the actual vector types. */
  11 typedef struct vector__s {
  12     size_t Capacity;
  13     size_t Size;
  14 } *vector_;
  15
  16 #define TYPEDEF_VECTOR(T, N) typedef struct {                                 \
  17     size_t Capacity;                                                          \
  18     size_t Size;                                                              \
  19     T Data[];                                                                 \
  20 } _##N;                                                                       \
  21 typedef _##N* N;                                                              \
  22 typedef const _##N* const_##N;
  23
  24 #define VECTOR(T) struct {                                                    \
  25     size_t Capacity;                                                          \
  26     size_t Size;                                                              \
  27     T Data[];                                                                 \
  28 }*
  29
  30 #define VECTOR_INIT(_x)       do { (_x) = NULL; } while(0)
  31 #define VECTOR_INIT_STATIC()  NULL
  32 #define VECTOR_DEINIT(_x)     do { al_free((_x)); (_x) = NULL; } while(0)
  33
  34 /* Helper to increase a vector's reserve. Do not call directly. */
  35 ALboolean vector_reserve(char *ptr, size_t base_size, size_t obj_size, size_t obj_count, ALboolean exact);
  36 #define VECTOR_RESERVE(_x, _c) (vector_reserve((char*)&(_x), sizeof(*(_x)), sizeof((_x)->Data[0]), (_c), AL_TRUE))
  37
  38 ALboolean vector_resize(char *ptr, size_t base_size, size_t obj_size, size_t obj_count);
  39 #define VECTOR_RESIZE(_x, _c) (vector_resize((char*)&(_x), sizeof(*(_x)), sizeof((_x)->Data[0]), (_c)))
  40
  41 #define VECTOR_CAPACITY(_x) ((_x) ? (_x)->Capacity : 0)
  42 #define VECTOR_SIZE(_x)     ((_x) ? (_x)->Size : 0)
  43
  44 #define VECTOR_BEGIN(_x) ((_x) ? (_x)->Data + 0 : NULL)
  45 #define VECTOR_END(_x)   ((_x) ? (_x)->Data + (_x)->Size : NULL)
  46
  47 #define VECTOR_PUSH_BACK(_x, _obj) (vector_reserve((char*)&(_x), sizeof(*(_x)), sizeof((_x)->Data[0]), VECTOR_SIZE(_x)+1, AL_FALSE) && \
  48                                     (((_x)->Data[(_x)->Size++] = (_obj)),AL_TRUE))
  49 #define VECTOR_POP_BACK(_x) ((void)((_x)->Size--))
  50
  51 #define VECTOR_BACK(_x)  ((_x)->Data[(_x)->Size-1])
  52 #define VECTOR_FRONT(_x) ((_x)->Data[0])
  53
  54 #define VECTOR_ELEM(_x, _o) ((_x)->Data[(_o)])
  55
  56 #define VECTOR_FOR_EACH(_t, _x, _f)  do {                                     \
  57     _t *_iter = VECTOR_BEGIN((_x));                                           \
  58     _t *_end = VECTOR_END((_x));                                              \
  59     for(;_iter != _end;++_iter)                                               \
  60         _f(_iter);                                                            \
  61 } while(0)
  62
  63 #define VECTOR_FOR_EACH_PARAMS(_t, _x, _f, ...)  do {                         \
  64     _t *_iter = VECTOR_BEGIN((_x));                                           \
  65     _t *_end = VECTOR_END((_x));                                              \
  66     for(;_iter != _end;++_iter)                                               \
  67         _f(__VA_ARGS__, _iter);                                               \
  68 } while(0)
  69
  70 #define VECTOR_FIND_IF(_i, _t, _x, _f)  do {                                  \
  71     _t *_iter = VECTOR_BEGIN((_x));                                           \
  72     _t *_end = VECTOR_END((_x));                                              \
  73     for(;_iter != _end;++_iter)                                               \
  74     {                                                                         \
  75         if(_f(_iter))                                                         \
  76             break;                                                            \
  77     }                                                                         \
  78     (_i) = _iter;                                                             \
  79 } while(0)
  80
  81 #define VECTOR_FIND_IF_PARMS(_i, _t, _x, _f, ...)  do {                       \
  82     _t *_iter = VECTOR_BEGIN((_x));                                           \
  83     _t *_end = VECTOR_END((_x));                                              \
  84     for(;_iter != _end;++_iter)                                               \
  85     {                                                                         \
  86         if(_f(__VA_ARGS__, _iter))                                            \
  87             break;                                                            \
  88     }                                                                         \
  89     (_i) = _iter;                                                             \
  90 } while(0)
  91
  92 #endif /* AL_VECTOR_H */