本文整理汇总了C++中BitString::getBufAddr方法的典型用法代码示例。如果您正苦于以下问题：C++ BitString::getBufAddr方法的具体用法？C++ BitString::getBufAddr怎么用？C++ BitString::getBufAddr使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类BitString的用法示例。
在下文中一共展示了BitString::getBufAddr方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: setString
void BitString::setString( const BitString & i_sStr, uint32_t i_sPos,
uint32_t i_sLen, uint32_t i_dPos )
{
// Ensure the source parameters are valid.
PRDF_ASSERT( nullptr != i_sStr.getBufAddr() );
PRDF_ASSERT( 0 < i_sLen ); // at least one bit to copy
PRDF_ASSERT( i_sPos + i_sLen <= i_sStr.getBitLen() );
// Ensure the destination has at least one bit available to copy.
PRDF_ASSERT( nullptr != getBufAddr() );
PRDF_ASSERT( i_dPos < getBitLen() );
// If the source length is greater than the destination length than the
// extra source bits are ignored.
uint32_t actLen = std::min( i_sLen, getBitLen() - i_dPos );
// The bit strings may be in overlapping memory spaces. So we need to copy
// the data in the correct direction to prevent overlapping.
uint32_t sRelOffset = 0, dRelOffset = 0;
CPU_WORD * sRelAddr = i_sStr.getRelativePosition( sRelOffset, i_sPos );
CPU_WORD * dRelAddr = getRelativePosition( dRelOffset, i_dPos );
// Copy the data.
if ( (dRelAddr == sRelAddr) && (dRelOffset == sRelOffset) )
{
// Do nothing. The source and destination are the same.
}
else if ( (dRelAddr < sRelAddr) ||
((dRelAddr == sRelAddr) && (dRelOffset < sRelOffset)) )
{
// Copy the data forward.
for ( uint32_t pos = 0; pos < actLen; pos += CPU_WORD_BIT_LEN )
{
uint32_t len = std::min( actLen - pos, CPU_WORD_BIT_LEN );
CPU_WORD value = i_sStr.getField( i_sPos + pos, len );
setField( i_dPos + pos, len, value );
}
}
else // Copy the data backwards.
{
// Get the first position of the last chunk (CPU_WORD aligned).
uint32_t lastPos = ((actLen-1) / CPU_WORD_BIT_LEN) * CPU_WORD_BIT_LEN;
// Start with the last chunk and work backwards.
for ( int32_t pos = lastPos; 0 <= pos; pos -= CPU_WORD_BIT_LEN )
{
uint32_t len = std::min( actLen - pos, CPU_WORD_BIT_LEN );
CPU_WORD value = i_sStr.getField( i_sPos + pos, len );
setField( i_dPos + pos, len, value );
}
}
}