CTString &CTString::operator+=(const CTString &strSecond)
{
ASSERT(IsValid() && strSecond.IsValid());
GrowMemory( (void **)&str_String, strlen( str_String) + strlen( strSecond) + 1 );
strcat(str_String, strSecond.str_String);
return *this;
}
// expand buffer to be given number of bytes in size
void CBuffer::Expand(SLONG slNewSize)
{
ASSERT(slNewSize>0);
ASSERT(bu_slSize>=0);
// if not already allocated
if (bu_slSize==0) {
// allocate a new empty buffer
ASSERT(bu_pubBuffer==NULL);
bu_pubBuffer = (UBYTE*)AllocMemory(slNewSize);
bu_slWriteOffset = 0;
bu_slReadOffset = 0;
bu_slFree = slNewSize;
bu_slSize = slNewSize;
// if already allocated
} else {
ASSERT(slNewSize>bu_slSize);
SLONG slSizeDiff = slNewSize-bu_slSize;
ASSERT(bu_pubBuffer!=NULL);
// grow buffer
GrowMemory((void**)&bu_pubBuffer, slNewSize);
// if buffer is currently wrapping
if (bu_slReadOffset>bu_slWriteOffset||bu_slFree==0) {
// move part at the end of buffer to the end
memmove(bu_pubBuffer+bu_slReadOffset+slSizeDiff, bu_pubBuffer+bu_slReadOffset,
bu_slSize-bu_slReadOffset);
bu_slReadOffset+=slSizeDiff;
}
bu_slFree += slNewSize-bu_slSize;
bu_slSize = slNewSize;
ASSERT(bu_slReadOffset>=0 && bu_slReadOffset<bu_slSize);
ASSERT(bu_slFree>=0 && bu_slFree<=bu_slSize);
}
}
ON_3dVector* ON_Workspace::GrowVectorMemory( ON_3dVector* p, size_t size )
{
ON_3dVector* v3d = (ON_3dVector*)(GrowMemory(p,size*sizeof(*v3d)));
return v3d;
}
ON_3dPoint* ON_Workspace::GrowPointMemory( ON_3dPoint* p, size_t size )
{
ON_3dPoint* p3d = (ON_3dPoint*)(GrowMemory(p,size*sizeof(*p3d)));
return p3d;
}
double* ON_Workspace::GrowDoubleMemory( double* p, size_t size )
{
double* pd = (double*)(GrowMemory(p,size*sizeof(*pd)));
return pd;
}
int* ON_Workspace::GrowIntMemory( int* p, size_t size )
{
int* pi = (int*)(GrowMemory(p,size*sizeof(*pi)));
return pi;
}
