[string.conversions]

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

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

@@ -0,0 +1,108 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// int stoi(const string& str, size_t *idx = 0, int base = 10);
+// int stoi(const wstring& str, size_t *idx = 0, int base = 10);
+
+#include <string>
+#include <cassert>
+
+int main()
+{
+    assert(std::stoi("0") == 0);
+    assert(std::stoi(L"0") == 0);
+    assert(std::stoi("-0") == 0);
+    assert(std::stoi(L"-0") == 0);
+    assert(std::stoi("-10") == -10);
+    assert(std::stoi(L"-10") == -10);
+    assert(std::stoi(" 10") == 10);
+    assert(std::stoi(L" 10") == 10);
+    size_t idx = 0;
+    assert(std::stoi("10g", &idx, 16) == 16);
+    assert(idx == 2);
+    idx = 0;
+    assert(std::stoi(L"10g", &idx, 16) == 16);
+    assert(idx == 2);
+    if (std::numeric_limits<long>::max() > std::numeric_limits<int>::max())
+    {
+        try
+        {
+            std::stoi("0x100000000", &idx, 16);
+            assert(false);
+        }
+        catch (const std::out_of_range&)
+        {
+        }
+        try
+        {
+            std::stoi(L"0x100000000", &idx, 16);
+            assert(false);
+        }
+        catch (const std::out_of_range&)
+        {
+        }
+    }
+    idx = 0;
+    try
+    {
+        std::stoi("", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stoi(L"", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stoi("  - 8", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stoi(L"  - 8", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stoi("a1", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+    try
+    {
+        std::stoi(L"a1", &idx);
+        assert(false);
+    }
+    catch (const std::invalid_argument&)
+    {
+        assert(idx == 0);
+    }
+}