kc3-lang/kc3/libc3/ptr_free.c

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• Hash : b700d912
  Author : Thomas de Grivel
  Date : 2023-12-14T03:27:02
  

  wip ptr_free

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• libc3/ptr_free.c

• /* c3
   * Copyright 2022,2023 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include <assert.h>
  #include <err.h>
  #include <stdlib.h>
  #include "integer.h"
  #include "ptr_free.h"
  #include "tag_type.h"
  
  u_ptr_w * ptr_free_cast (const s_tag *tag, u_ptr_w *dest)
  {
    assert(tag);
    assert(dest);
    switch (tag->type) {
    case TAG_F32: dest->p = (void *) ((uw) tag->data.f32);  return dest;
    case TAG_F64: dest->p = (void *) ((uw) tag->data.f64);  return dest;
    case TAG_INTEGER:
      dest->p = (void *) integer_to_uw(&tag->data.integer); return dest;
    case TAG_PTR: dest->p = tag->data.ptr.p;                return dest;
    case TAG_PTR_FREE: dest->p = tag->data.ptr_free.p;      return dest;
    case TAG_S8:  dest->p = (void *) ((uw) tag->data.s8);          return dest;
    case TAG_S16: dest->p = (void *) ((uw) tag->data.s16);        return dest;
    case TAG_S32: dest->p = (void *) ((uw) tag->data.s32);        return dest;
    case TAG_S64: dest->p = (void *) ((uw) tag->data.s64);        return dest;
    case TAG_SW:  dest->p = (void *) ((uw) tag->data.sw);         return dest;
    case TAG_U8:  dest->p = (void *) ((uw) tag->data.u8);         return dest;
    case TAG_U16: dest->p = (void *) ((uw) tag->data.u16);        return dest;
    case TAG_U32: dest->p = (void *) ((uw) tag->data.u32);        return dest;
    case TAG_U64: dest->p = (void *) ((uw) tag->data.u64);        return dest;
    case TAG_UW:  dest->p = (void *) ((uw) tag->data.uw);         return dest;
    default: break;
    }
    warnx("ptr_free_cast: cannot cast %s to PtrFree",
          tag_type_to_string(tag->type));
    return NULL;
  }
  
  void ptr_free_clean (u_ptr_w *ptr_free)
  {
    assert(ptr_free);
    free(ptr_free->p);
  }
  
  void ptr_free_delete (u_ptr_w *ptr_free)
  {
    assert(ptr_free);
    ptr_free_clean(ptr_free);
    free(ptr_free);
  }
  
  u_ptr_w * ptr_free_init (u_ptr_w *ptr_free, void *p)
  {
    u_ptr_w tmp = {0};
    assert(ptr_free);
    tmp.p = p;
    *ptr_free = tmp;
    return ptr_free;
  }
  
  u_ptr_w * ptr_free_init_copy (u_ptr_w *ptr_free, const u_ptr_w *src)
  {
    u_ptr_w tmp = {0};
    assert(ptr_free);
    assert(src);
    tmp.p = src->p;
    *ptr_free = tmp;
    return ptr_free;
  }
  
  u_ptr_w * ptr_free_new (void *p)
  {
    u_ptr_w *ptr_free;
    ptr_free = calloc(1, sizeof(u_ptr_w));
    if (! ptr_free) {
      warn("ptr_free_new: ptr_free");
      return NULL;
    }
    if (! ptr_free_init(ptr_free, p)) {
      free(ptr_free);
      return NULL;
    }
    return ptr_free;
  }
  
  u_ptr_w * ptr_free_new_copy (const u_ptr_w *src)
  {
    u_ptr_w *ptr_free;
    assert(src);
    ptr_free = calloc(1, sizeof(u_ptr_w));
    if (! ptr_free) {
      warn("ptr_free_new: ptr_free");
      return NULL;
    }
    if (! ptr_free_init_copy(ptr_free, src)) {
      free(ptr_free);
      return NULL;
    }
    return ptr_free;
  }
  

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