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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <string_view>
// size_type copy(charT* s, size_type n, size_type pos = 0) const;
// Throws: out_of_range if pos > size().
// Remarks: Let rlen be the smaller of n and size() - pos.
// Requires: [s, s+rlen) is a valid range.
// Effects: Equivalent to std::copy_n(begin() + pos, rlen, s).
// Returns: rlen.
#include <experimental/string_view>
#include <cassert>
#include "test_macros.h"
template<typename CharT>
void test1 ( std::experimental::basic_string_view<CharT> sv, size_t n, size_t pos ) {
const size_t rlen = std::min ( n, sv.size() - pos );
CharT *dest1 = new CharT [rlen + 1]; dest1[rlen] = 0;
CharT *dest2 = new CharT [rlen + 1]; dest2[rlen] = 0;
if (pos > sv.size()) {
#ifndef TEST_HAS_NO_EXCEPTIONS
try {
sv.copy(dest1, n, pos);
assert(false);
} catch (const std::out_of_range&) {
} catch (...) {
assert(false);
}
#endif
} else {
sv.copy(dest1, n, pos);
std::copy_n(sv.begin() + pos, rlen, dest2);
for ( size_t i = 0; i <= rlen; ++i )
assert ( dest1[i] == dest2[i] );
}
delete [] dest1;
delete [] dest2;
}
template<typename CharT>
void test ( const CharT *s ) {
typedef std::experimental::basic_string_view<CharT> string_view_t;
string_view_t sv1 ( s );
test1(sv1, 0, 0);
test1(sv1, 1, 0);
test1(sv1, 20, 0);
test1(sv1, sv1.size(), 0);
test1(sv1, 20, string_view_t::npos);
test1(sv1, 0, 3);
test1(sv1, 2, 3);
test1(sv1, 100, 3);
test1(sv1, 100, string_view_t::npos);
test1(sv1, sv1.size(), string_view_t::npos);
test1(sv1, sv1.size() + 1, 0);
test1(sv1, sv1.size() + 1, 1);
test1(sv1, sv1.size() + 1, string_view_t::npos);
}
int main () {
test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( "ABCDE");
test ( "a" );
test ( "" );
test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( L"ABCDE" );
test ( L"a" );
test ( L"" );
#if TEST_STD_VER >= 11
test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( u"ABCDE" );
test ( u"a" );
test ( u"" );
test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
test ( U"ABCDE" );
test ( U"a" );
test ( U"" );
#endif
}
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