CUtlVector<char,CUtlMemory<char,int>>::GrowVector

/* CUtlVector<char, CUtlMemory<char, int> >::GrowVector(int) */

void __thiscall
CUtlVector<char,CUtlMemory<char,int>>::GrowVector
          (CUtlVector<char,CUtlMemory<char,int>> *this,int param_1)

{
  int iVar1;
  size_t __size;
  void *pvVar2;
  size_t sVar3;
  int iVar4;
  
  sVar3 = *(size_t *)(this + 4);
  iVar4 = *(int *)(this + 0xc) + param_1;
  if ((int)sVar3 < iVar4) {
    iVar1 = *(int *)(this + 8);
    if (-1 < iVar1) {
      if (iVar1 == 0) {
        if (sVar3 == 0) {
          if (iVar4 < 0x21) {
            __size = 0x20;
            goto LAB_00b73b6f;
          }
          sVar3 = 0x20;
        }
        do {
          __size = sVar3 * 2;
          if (iVar4 <= (int)__size) break;
          __size = sVar3 * 4;
          sVar3 = __size;
        } while ((int)__size < iVar4);
      }
      else {
        for (__size = ((iVar4 + -1) / iVar1 + 1) * iVar1; (int)__size < iVar4;
            __size = (int)(__size + iVar4) / 2) {
        }
      }
LAB_00b73b6f:
      *(size_t *)(this + 4) = __size;
      if (*(void **)this != (void *)0x0) {
        pvVar2 = realloc(*(void **)this,__size);
        *(void **)this = pvVar2;
        *(void **)(this + 0x10) = pvVar2;
        *(int *)(this + 0xc) = param_1 + *(int *)(this + 0xc);
        return;
      }
      pvVar2 = malloc(__size);
      *(void **)this = pvVar2;
      goto LAB_00b73b2d;
    }
  }
  pvVar2 = *(void **)this;
LAB_00b73b2d:
  *(int *)(this + 0xc) = iVar4;
  *(void **)(this + 0x10) = pvVar2;
  return;
}