DwString::DwString(char *aBuf, size_t aSize, size_t aStart, size_t aLen)
{
assert(aBuf != 0);
assert(aSize > 0);
assert(aLen < aSize);
assert(aStart < aSize - aLen);
if(sEmptyRep == 0)
{
sEmptyBuffer[0] = 0;
sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
assert(sEmptyRep != 0);
}
DBG_STMT(sEmptyRep->CheckInvariants())
// Set valid values, in case an exception is thrown
mRep = new_rep_reference(sEmptyRep);
mStart = 0;
mLength = 0;
DwStringRep *rep = new DwStringRep(aBuf, aSize);
assert(rep != 0);
if(rep != 0)
{
mRep = rep;
mStart = aStart;
mLength = aLen;
}
else /* if (rep == 0) */
{
delete [] aBuf;
}
}
DwString::DwString(const DwString &aStr, size_t aPos, size_t aLen)
{
assert(aPos <= aStr.mLength);
if(sEmptyRep == 0)
{
sEmptyBuffer[0] = 0;
sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
assert(sEmptyRep != 0);
}
DBG_STMT(aStr.CheckInvariants())
size_t pos = DW_MIN(aPos, aStr.mLength);
size_t len = DW_MIN(aLen, aStr.mLength - pos);
if(len > 0)
{
mRep = new_rep_reference(aStr.mRep);
mStart = aStr.mStart + pos;
mLength = len;
}
else /* if (len == 0) */
{
mRep = new_rep_reference(sEmptyRep);
mStart = 0;
mLength = 0;
}
}
DwString::DwString()
{
if (sEmptyRep == 0) {
sEmptyBuffer[0] = 0;
sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
assert(sEmptyRep != 0);
}
DBG_STMT(sEmptyRep->CheckInvariants())
mRep = new_rep_reference(sEmptyRep);
mStart = 0;
mLength = 0;
}
DwString::DwString(size_t aLen, char aChar)
{
assert(aLen != (size_t)-1);
if (sEmptyRep == 0) {
sEmptyBuffer[0] = 0;
sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
assert(sEmptyRep != 0);
}
DBG_STMT(sEmptyRep->CheckInvariants())
// Set valid values, in case an exception is thrown
mRep = new_rep_reference(sEmptyRep);
mStart = 0;
mLength = 0;
_replace(0, mLength, aLen, aChar);
}
DwString::DwString(FILE* aFile , size_t aLen)
{
assert(aFile != 0);
assert(aLen != (size_t)-1);
if (sEmptyRep == 0) {
sEmptyBuffer[0] = 0;
sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
assert(sEmptyRep != 0);
}
DBG_STMT(sEmptyRep->CheckInvariants())
// Set valid values, in case an exception is thrown
mRep = new DwStringRep(aFile, aLen);
mStart = 0;
mLength = aLen;
}
DwString::DwString(const char* aCstr)
{
if (sEmptyRep == 0) {
sEmptyBuffer[0] = 0;
sEmptyRep = new DwStringRep(sEmptyBuffer, kEmptyBufferSize);
assert(sEmptyRep != 0);
}
DBG_STMT(sEmptyRep->CheckInvariants())
// Set valid values, in case an exception is thrown
mRep = new_rep_reference(sEmptyRep);
mStart = 0;
mLength = 0;
if ( aCstr ) {
size_t len = strlen(aCstr);
_replace(0, mLength, aCstr, len);
}
}
