author | Shabe Razvi <shaber@symbian.org> |
Thu, 02 Sep 2010 17:14:31 +0100 | |
branch | RCL_3 |
changeset 58 | 104bd6aeae10 |
parent 0 | e4d67989cc36 |
child 18 | 47c74d1534e1 |
permissions | -rw-r--r-- |
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#include <algorithm> |
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#if !defined (STLPORT) || !defined (_STLP_USE_NO_IOSTREAMS) |
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# include <sstream> |
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# include <functional> |
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# include <iterator> |
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# include <vector> |
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# include <string> |
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#endif |
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#include "cppunit/cppunit_proxy.h" |
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#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES) |
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using namespace std; |
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#endif |
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// |
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// TestCase class |
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// |
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class IStreamIteratorTest : public CPPUNIT_NS::TestCase |
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{ |
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CPPUNIT_TEST_SUITE(IStreamIteratorTest); |
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#if defined (STLPORT) && defined (_STLP_USE_NO_IOSTREAMS) |
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CPPUNIT_IGNORE; |
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#endif |
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CPPUNIT_TEST(istmit1); |
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#if !defined (STLPORT) || defined (_STLP_NO_EXTENSIONS) |
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CPPUNIT_IGNORE; |
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#endif |
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CPPUNIT_TEST(copy_n_test); |
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CPPUNIT_TEST_SUITE_END(); |
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protected: |
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void istmit1(); |
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void copy_n_test(); |
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}; |
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CPPUNIT_TEST_SUITE_REGISTRATION(IStreamIteratorTest); |
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#if !defined (STLPORT) || !defined (_STLP_USE_NO_IOSTREAMS) |
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# if !defined (STLPORT) || !defined (_STLP_LIMITED_DEFAULT_TEMPLATES) |
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typedef istream_iterator<char> istream_char_ite; |
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typedef istream_iterator<int> istream_int_ite; |
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typedef istream_iterator<string> istream_string_ite; |
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# else |
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typedef istream_iterator<char, ptrdiff_t> istream_char_ite; |
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typedef istream_iterator<int, ptrdiff_t> istream_int_ite; |
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typedef istream_iterator<string, ptrdiff_t> istream_string_ite; |
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# endif |
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#endif |
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// |
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// tests implementation |
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// |
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void IStreamIteratorTest::istmit1() |
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{ |
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#if !defined (STLPORT) || !defined (_STLP_USE_NO_IOSTREAMS) |
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const char* buff = "MyString"; |
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istringstream istr(buff); |
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char buffer[100]; |
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size_t i = 0; |
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istr.unsetf(ios::skipws); // Disable white-space skipping. |
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istream_char_ite s(istr), meos; |
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while (!(s == meos) && |
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//*TY 01/10/1999 - added end of stream check |
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// NOTE operator!= should not be used here ifndef _STLP_FUNCTION_TMPL_PARTIAL_ORDER |
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(*s != '\n') && |
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(i < sizeof(buffer) / sizeof(buffer[0]))) { //*TY 07/28/98 - added index check |
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buffer[i++] = *s++; |
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} |
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buffer[i] = '\0'; // Null terminate buffer. |
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CPPUNIT_ASSERT(!strcmp(buffer, buff)); |
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{ |
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istringstream empty_istr; |
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CPPUNIT_ASSERT( istream_char_ite(empty_istr) == istream_char_ite() ); |
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} |
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#endif |
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} |
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void IStreamIteratorTest::copy_n_test() |
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{ |
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#if defined (STLPORT) && !defined (_STLP_NO_EXTENSIONS) && !defined (_STLP_USE_NO_IOSTREAMS) |
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//This test check that no character is lost while reading the istream |
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//through a istream_iterator. |
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{ |
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istringstream istr("aabbcd"); |
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string chars; |
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istream_char_ite ite = copy_n(copy_n(istream_char_ite(istr), |
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2, back_inserter(chars)).first, |
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2, back_inserter(chars)).first; |
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CPPUNIT_ASSERT( chars == "aabb" ); |
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copy_n(ite, 2, back_inserter(chars)); |
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CPPUNIT_ASSERT( chars == "aabbcd" ); |
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} |
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{ |
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istringstream istr("11 22 AA BB 33 44 CC DD"); |
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vector<int> ints; |
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vector<string> strings; |
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copy_n(istream_int_ite(istr), 2, back_inserter(ints)); |
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CPPUNIT_ASSERT( ints.size() == 2 ); |
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CPPUNIT_ASSERT( ints[0] == 11 ); |
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CPPUNIT_ASSERT( ints[1] == 22 ); |
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ints.clear(); |
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istr.clear(); |
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copy_n(istream_string_ite(istr), 2, back_inserter(strings)); |
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CPPUNIT_ASSERT( strings.size() == 2 ); |
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CPPUNIT_ASSERT( strings[0] == "AA" ); |
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CPPUNIT_ASSERT( strings[1] == "BB" ); |
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strings.clear(); |
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istr.clear(); |
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/* The following code cannot work, '33' is extracted as a string |
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* in the previous copy_n call, this value is returned in the pair |
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* returned by copy_n but is lost as this istream_iterator is not used. |
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* copy_n and istream_iterator can only be combined safely if: |
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* - you always extract the same type of istream_iterator and you always reuse |
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* the istream_iterator returned by copy_n (see previous test with "aabbcd") |
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* - you extract different type of object and no object is convertible to an other |
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* as in this current test when you extract int and string (when you extract ints |
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* again it fails as int can be converted to strings. |
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* |
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copy_n(istream_int_ite(istr), 2, back_inserter(ints)); |
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CPPUNIT_ASSERT( ints.size() == 2 ); |
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CPPUNIT_ASSERT( ints[0] == 33 ); |
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CPPUNIT_ASSERT( ints[1] == 44 ); |
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istr.clear(); |
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copy_n(istream_string_ite(istr), 2, back_inserter(strings)); |
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CPPUNIT_ASSERT( strings.size() == 2 ); |
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CPPUNIT_ASSERT( strings[0] == "CC" ); |
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CPPUNIT_ASSERT( strings[1] == "DD" ); |
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*/ |
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} |
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136 |
|
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{ |
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istringstream is("1 2 3 4 5 6 7 8 9 10"); |
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vector<int> ints; |
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istream_iterator<int> itr(is); |
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itr = copy_n(itr, 0, back_inserter(ints)).first; |
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CPPUNIT_ASSERT( ints.empty() ); |
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itr = copy_n(itr, -1, back_inserter(ints)).first; |
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CPPUNIT_ASSERT( ints.empty() ); |
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itr = copy_n(itr, 2, back_inserter(ints)).first; |
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CPPUNIT_ASSERT( ints.size() == 2 ); |
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CPPUNIT_ASSERT( ints[0] == 1 ); |
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CPPUNIT_ASSERT( ints[1] == 2 ); |
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itr = copy_n(itr, 2, back_inserter(ints)).first; |
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CPPUNIT_ASSERT( ints.size() == 4 ); |
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CPPUNIT_ASSERT( ints[2] == 3 ); |
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CPPUNIT_ASSERT( ints[3] == 4 ); |
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itr = copy_n(itr, 2, back_inserter(ints)).first; |
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CPPUNIT_ASSERT( ints.size() == 6 ); |
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CPPUNIT_ASSERT( ints[4] == 5 ); |
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CPPUNIT_ASSERT( ints[5] == 6 ); |
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} |
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#endif |
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} |