Revision 11387, 1.3 kB
(checked in by mokehehe, 8 years ago)

スタックベースに乗せ換え

Line  

1  //=============================================================================


2  /// S ������/**


3  mallloc �Ŋm�ۂ����A�h���X�͂S�̔{���Ɖ���*/


4  //=============================================================================


5 


6  #include "svect.h"


7  #include "inner.h"


8 


9 


10  SExp make_vector(int size) {


11  if (size <= 0)


12  return nil;


13 


14  unsigned int n = size;


15  SVector* p = (SVector*)salloc(sizeof(SVector) + sizeof(SExp) * (n  1), FALSE);


16  p>type = tVect;


17  p>size = n;


18  for (unsigned int i=0; i<n; ++i) {


19  p>buf[i] = nil;


20  }


21 


22  SExp s;


23  s.ptr = (SExpExtU*)p;


24  return s;


25  }


26 


27  void vector_set(SExp v, int i, SExp val) {


28  type_check(v, tVect);


29  SVector* p = (SVector*)v.ptr;


30  unsigned int idx = i;


31  if (idx < p>size) {


32  p>buf[idx] = val;


33  }


34  }


35 


36  SExp vector_ref(SExp v, int i) {


37  type_check(v, tVect);


38  SVector* p = (SVector*)v.ptr;


39  unsigned int idx = i;


40  if (idx < p>size) {


41  return p>buf[idx];


42  } else {


43  return nil;


44  }


45  }


46 


47  int vector_length(SExp v) {


48  type_check(v, tVect);


49  SVector* p = (SVector*)v.ptr;


50  return p>size;


51  }


52 


53 


54  void print_vector(SExp v) {


55  type_check(v, tVect);


56  SVector* p = (SVector*)v.ptr;


57 


58  printf("#(");


59  unsigned int n = p>size;


60  for (unsigned int i = 0; i < n; ++i) {


61  print_rec(p>buf[i]);


62  }


63  printf(")");


64  }

