// CONSTRUCTOR (const AString &)
//------------------------------------------------------------------------------
AString::AString( const AString & string )
{
uint32_t len = string.GetLength();
m_Length = len;
uint32_t reserved = Math::RoundUp( len, (uint32_t)2 );
m_Contents = (char *)ALLOC( reserved + 1 );
SetReserved( reserved, true );
Copy( string.Get(), m_Contents, len ); // copy handles terminator
}
// CONSTRUCTOR (const char *)
//------------------------------------------------------------------------------
AString::AString( const char * string )
{
ASSERT( string );
uint32_t len = (uint32_t)StrLen( string );
m_Length = len;
uint32_t reserved = Math::RoundUp( len, (uint32_t)2 );
m_Contents = (char *)ALLOC( reserved + 1 );
SetReserved( reserved, true );
Copy( string, m_Contents, len ); // copy handles terminator
}
// GrowNoCopy
//------------------------------------------------------------------------------
void AString::GrowNoCopy( uint32_t newLength )
{
if ( MemoryMustBeFreed() )
{
FREE( m_Contents );
}
// allocate space, rounded up to multiple of 2
uint32_t reserve = Math::RoundUp( newLength, (uint32_t)2 );
m_Contents = (char *)ALLOC( reserve + 1 ); // also allocate for \0 terminator
SetReserved( reserve, true );
}
// CONSTRUCTOR (uint32_t)
//------------------------------------------------------------------------------
AString::AString( uint32_t reserve )
{
char * mem = nullptr;
if ( reserve > 0 )
{
reserve = Math::RoundUp( reserve, (uint32_t)2 );
mem = (char *)ALLOC( reserve + 1 );
mem[ 0 ] = '\000';
}
m_Contents = mem;
m_Length = 0;
SetReserved( reserve, true );
}
// Grow
//------------------------------------------------------------------------------
void AString::Grow( uint32_t newLength )
{
// allocate space, rounded up to multiple of 2
uint32_t reserve = Math::RoundUp( newLength, (uint32_t)2 );
char * newMem = (char *)ALLOC( reserve + 1 ); // also allocate for \0 terminator
// transfer existing string data
Copy( m_Contents, newMem, m_Length );
if ( MemoryMustBeFreed() )
{
FREE( m_Contents );
}
m_Contents = newMem;
SetReserved( reserve, true );
}
