Phrase reversals: Difference between revisions

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=={{header|C++}}==

<lang cpp>#include <iostream>

#include <iostream>

#include <vector>

#include <algorithm>

#include <string>

#include <~~boost/tokenizer.hpp~~>

#include <iterator>

#include <sstream>

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int main() {

void string_to_vector ( const std::string & input , std::vector<std::string> & words ) {

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std::string s = "rosetta code phrase reversal";

boost::tokenizer<> tok( input ) ;

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std::cout << "Input : " << s << '\n'

for ( boost::tokenizer<>::iterator beg = tok.begin( ) ; beg != tok.end( ) ; ++beg )

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<< "Input reversed : " << std::string(s.rbegin(), s.rend()) << '\n' ;

words.push_back( *beg ) ;

std::istringstream is(s);

}

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std::vector<std::string> words(std::istream_iterator<std::string>(is), {});

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int main( ) {

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std::string ~~startphrase~~ ( "rosetta code phrase reversal" ) ;

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std::cout << "Input : " << ~~startphrase~~ << '\n' ;

std::string local_copy ( startphrase ) ;

std::reverse ( local_copy.begin( ) , local_copy.end( ) ) ;

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~~std::cout~~ << "Input reversed : " << ~~local_copy~~ << '\n' ;

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std::vector<std::string> words ;

string_to_vector ( startphrase , words ) ;

//copy the vector with the original words to reverse their order later

std::vector<std::string> original_words ( words ) ;

//reverse each word in the string

std::cout << "Each word reversed : " ;

for ( ~~std::string word~~ : words ) {

for(auto w : words)

std::~~reverse~~ ( ~~word~~.~~begin~~( ) , ~~word~~.~~end~~( ) ) ;

std::cout << std::string(w.rbegin(), w.rend()) << ' ';

std::cout << ~~word << " " ;~~

std::cout << '\n'

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<< "Original word order reversed : " ;

}

reverse_copy(words.begin(), words.end(), std::ostream_iterator<std::string>(std::cout, " "));

std::cout << '\n' ;

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~~std::cout~~ << "Original word order reversed : " ;

for ( std::vector<std::string>::const_reverse_iterator cri = original_words.rbegin( ) ;

cri != original_words.rend( ) ; cri++ ) {

std::cout << *cri << " " ;

}

std::cout << '\n' ;

return 0 ;

}

</lang>