[string.conversions]

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@105336 91177308-0d34-0410-b5e6-96231b3b80d8

test/strings/string.conversions/stold.pass.cpp

@@ -0,0 +1,168 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// long double stold(const string& str, size_t *idx = 0);
+// long double stold(const wstring& str, size_t *idx = 0);
+
+#include <iostream>
+
+#include <string>
+#include <cmath>
+#include <cassert>
+
+int main()
+{
+    assert(std::stold("0") == 0);
+    assert(std::stold(L"0") == 0);
+    assert(std::stold("-0") == 0);
+    assert(std::stold(L"-0") == 0);
+    assert(std::stold("-10") == -10);
+    assert(std::stold(L"-10.5") == -10.5);
+    assert(std::stold(" 10") == 10);
+    assert(std::stold(L" 10") == 10);
+    size_t idx = 0;
+    assert(std::stold("10g", &idx) == 10);
+    assert(idx == 2);
+    idx = 0;
+    assert(std::stold(L"10g", &idx) == 10);
+    assert(idx == 2);
+    try
+    {
+        assert(std::stold("1.e60", &idx) == 1.e60L);
+        assert(idx == 5);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(false);
+    }
+    try
+    {
+        assert(std::stold(L"1.e60", &idx) == 1.e60L);
+        assert(idx == 5);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(false);
+    }
+    idx = 0;
+    try
+    {
+        assert(std::stold("1.e6000", &idx) == INFINITY);
+        assert(false);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        assert(std::stold(L"1.e6000", &idx) == INFINITY);
+        assert(false);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        assert(std::stold("INF", &idx) == INFINITY);
+        assert(idx == 3);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(false);
+    }
+    idx = 0;
+    try
+    {
+        assert(std::stold(L"INF", &idx) == INFINITY);
+        assert(idx == 3);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(false);
+    }
+    idx = 0;
+    try
+    {
+        assert(std::isnan(std::stold("NAN", &idx)));
+        assert(idx == 3);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(false);
+    }
+    idx = 0;
+    try
+    {
+        assert(std::isnan(std::stold(L"NAN", &idx)));
+        assert(idx == 3);
+    }
+    catch (const std::out_of_range&)
+    {
+        assert(false);
+    }
+    idx = 0;
+    try
+    {
+        std::stold("", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stold(L"", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stold("  - 8", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stold(L"  - 8", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stold("a1", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stold(L"a1", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+}