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Implement LWG #2268: Setting a default argument in the declaration of a member function assign of std::basic_string.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@202876 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Marshall Clow
2014-03-04 19:17:19 +00:00
parent be8a99ad0f
commit a93b5e27a8
6 changed files with 189 additions and 15 deletions
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49
test/strings/basic.string/string.modifiers/string_replace/size_size_string_size_size.pass.cpp
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@@ -11,7 +11,8 @@
// basic_string<charT,traits,Allocator>&
// replace(size_type pos1, size_type n1, const basic_string<charT,traits,Allocator>& str,
// size_type pos2, size_type n2);
// size_type pos2, size_type n2=npos);
// the "=npos" was added in C++14
#include <string>
#include <stdexcept>
@@ -45,6 +46,32 @@ test(S s, typename S::size_type pos1, typename S::size_type n1,
}
}
template <class S>
void
test_npos(S s, typename S::size_type pos1, typename S::size_type n1,
S str, typename S::size_type pos2,
S expected)
{
typename S::size_type old_size = s.size();
S s0 = s;
try
{
s.replace(pos1, n1, str, pos2);
assert(s.__invariants());
assert(pos1 <= old_size && pos2 <= str.size());
assert(s == expected);
typename S::size_type xlen = std::min(n1, old_size - pos1);
typename S::size_type rlen = std::min(S::npos, str.size() - pos2);
assert(s.size() == old_size - xlen + rlen);
}
catch (std::out_of_range&)
{
assert(pos1 > old_size || pos2 > str.size());
assert(s == s0);
}
}
template <class S>
void test0()
{
@@ -5796,6 +5823,24 @@ void test54()
test(S("abcdefghijklmnopqrst"), 21, 0, S("12345678901234567890"), 21, 0, S("can't happen"));
}
template <class S>
void test55()
{
test_npos(S("abcdefghij"), 9, 1, S("12345678901234567890"), 10, S("abcdefghi1234567890"));
test_npos(S("abcdefghij"), 9, 1, S("12345678901234567890"), 19, S("abcdefghi0"));
test_npos(S("abcdefghij"), 9, 1, S("12345678901234567890"), 20, S("abcdefghi"));
test_npos(S("abcdefghij"), 9, 1, S("12345678901234567890"), 20, S("abcdefghi"));
test_npos(S("abcdefghij"), 9, 1, S("12345678901234567890"), 21, S("can't happen"));
test_npos(S("abcdefghij"), 9, 2, S(""), 0, S("abcdefghi"));
test_npos(S("abcdefghij"), 9, 2, S(""), 1, S("can't happen"));
test_npos(S("abcdefghij"), 9, 2, S("12345"), 0, S("abcdefghi12345"));
test_npos(S("abcdefghij"), 9, 2, S("12345"), 1, S("abcdefghi2345"));
test_npos(S("abcdefghij"), 9, 2, S("12345"), 2, S("abcdefghi345"));
test_npos(S("abcdefghij"), 9, 2, S("12345"), 4, S("abcdefghi5"));
test_npos(S("abcdefghij"), 9, 2, S("12345"), 5, S("abcdefghi"));
test_npos(S("abcdefghij"), 9, 2, S("12345"), 6, S("can't happen"));
}
int main()
{
{
@@ -5855,6 +5900,7 @@ int main()
test52<S>();
test53<S>();
test54<S>();
test55<S>();
}
#if __cplusplus >= 201103L
{
@@ -5914,6 +5960,7 @@ int main()
test52<S>();
test53<S>();
test54<S>();
test55<S>();
}
#endif
}