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add == and != operators to the TextStreamBase<> class

This commit is contained in:
Tomasz Sowa 2023-07-14 09:07:57 +02:00
parent 172c2fcee7
commit 2c4bfe085b
Signed by: tomasz.sowa
GPG Key ID: 662CC1438638588B
1 changed files with 46 additions and 0 deletions
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46
src/textstream/textstream.h
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@ -198,6 +198,12 @@ public:
TextStreamBase & operator<<(const TextStreamBase<arg_char_type, arg_stack_size, arg_heap_block_size> & arg);
template<typename arg_char_type, size_t arg_stack_size, size_t arg_heap_block_size>
bool operator==(const TextStreamBase<arg_char_type, arg_stack_size, arg_heap_block_size> & stream) const;
template<typename arg_char_type, size_t arg_stack_size, size_t arg_heap_block_size>
bool operator!=(const TextStreamBase<arg_char_type, arg_stack_size, arg_heap_block_size> & stream) const;
// min width for integer output
// if the output value has less digits then first zeroes are added
@ -1206,6 +1212,46 @@ return *this;
}
template<typename char_type, size_t stack_size, size_t heap_block_size>
template<typename arg_char_type, size_t arg_stack_size, size_t arg_heap_block_size>
bool TextStreamBase<char_type, stack_size, heap_block_size>::operator==(const TextStreamBase<arg_char_type, arg_stack_size, arg_heap_block_size> & stream) const
{
bool are_the_same = false;
/*
* at the moment we do not make any conversions for == and != operators
* this may change in the future
*/
if( sizeof(char_type) == sizeof(arg_char_type) && size() == stream.size() )
{
are_the_same = true;
const_iterator i1 = begin();
const_iterator i2 = stream.begin();
const_iterator i1_end = end();
while( i1 != i1_end )
{
if( *i1 != *i2 )
{
are_the_same = false;
break;
}
++i1;
++i2;
}
}
return are_the_same;
}
template<typename char_type, size_t stack_size, size_t heap_block_size>
template<typename arg_char_type, size_t arg_stack_size, size_t arg_heap_block_size>
bool TextStreamBase<char_type, stack_size, heap_block_size>::operator!=(const TextStreamBase<arg_char_type, arg_stack_size, arg_heap_block_size> & stream) const
{
return !operator==(stream);
}