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[libcxx] [test] Fix string_view tests.

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test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
Passing -1 to size_t triggers signed/unsigned mismatch warnings because it's
a value-modifying conversion. Add static_cast<size_t> to soothe the compiler.
(This file refers to size_t unqualified.)

test/std/strings/string.view/string.view.ops/substr.pass.cpp
Add <algorithm> for std::min() and <stdexcept> for std::out_of_range.

N4618 21.4.2.4 [string.view.access]/1: "Requires: pos < size()."
/4: "[ Note: Unlike basic_string::operator[], basic_string_view::operator[](size())
has undefined behavior instead of returning charT(). -end note ]"

Fixes D27633.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@289283 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Stephan T. Lavavej
2016-12-09 22:35:53 +00:00
parent aa1d62b4af
commit eae7e51a7d
2 changed files with 7 additions and 5 deletions
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8
test/std/strings/string.view/string.view.ops/compare.pointer_size.pass.cpp
View File

@@ -376,7 +376,7 @@ int main()
test("abcdefghijklmnopqrst", 5, 5, "", 20);
test("abcdefghijklmnopqrst", 0, 8, "abcde", 15);
test("abcdefghijklmnopqrst", 0, 12, "abcdefghij", 10);
test("abcdefghijklmnopqrst", 0, -1, "abcdefghijklmnopqrst", 0);
test("abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), "abcdefghijklmnopqrst", 0);
}
{
@@ -395,7 +395,7 @@ int main()
test(L"abcdefghijklmnopqrst", 5, 5, L"", 20);
test(L"abcdefghijklmnopqrst", 0, 8, L"abcde", 15);
test(L"abcdefghijklmnopqrst", 0, 12, L"abcdefghij", 10);
test(L"abcdefghijklmnopqrst", 0, -1, L"abcdefghijklmnopqrst", 0);
test(L"abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), L"abcdefghijklmnopqrst", 0);
}
#if TEST_STD_VER >= 11
@@ -415,7 +415,7 @@ int main()
test(U"abcdefghijklmnopqrst", 5, 5, U"", 20);
test(U"abcdefghijklmnopqrst", 0, 8, U"abcde", 15);
test(U"abcdefghijklmnopqrst", 0, 12, U"abcdefghij", 10);
test(U"abcdefghijklmnopqrst", 0, -1, U"abcdefghijklmnopqrst", 0);
test(U"abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), U"abcdefghijklmnopqrst", 0);
}
{
@@ -434,7 +434,7 @@ int main()
test(u"abcdefghijklmnopqrst", 5, 5, u"", 20);
test(u"abcdefghijklmnopqrst", 0, 8, u"abcde", 15);
test(u"abcdefghijklmnopqrst", 0, 12, u"abcdefghij", 10);
test(u"abcdefghijklmnopqrst", 0, -1, u"abcdefghijklmnopqrst", 0);
test(u"abcdefghijklmnopqrst", 0, static_cast<size_t>(-1), u"abcdefghijklmnopqrst", 0);
}
#endif

4
test/std/strings/string.view/string.view.ops/substr.pass.cpp
View File

@@ -16,6 +16,8 @@
// Returns: basic_string_view(data()+pos, rlen).
#include <string_view>
#include <algorithm>
#include <stdexcept>
#include <cassert>
#include "test_macros.h"
@@ -39,7 +41,7 @@ void test1(std::basic_string_view<CharT> sv, size_t n, size_t pos) {
#endif
const size_t rlen = std::min(n, sv.size() - pos);
assert (sv1.size() == rlen);
for (size_t i = 0; i <= rlen; ++i)
for (size_t i = 0; i < rlen; ++i)
assert(sv[pos+i] == sv1[i]);
}