1 files changed, 679 insertions, 0 deletions
diff --git a/contrib/libc++/src/string.cpp b/contrib/libc++/src/string.cpp
new file mode 100644
index 0000000..750ba28
--- /dev/null
+++ b/contrib/libc++/src/string.cpp
@@ -0,0 +1,679 @@
+//===------------------------- string.cpp ---------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+#include "string"
+#include "cstdlib"
+#include "cwchar"
+#include "cerrno"
+#if _WIN32
+#include "support/win32/support.h"
+#endif // _WIN32
+
+_LIBCPP_BEGIN_NAMESPACE_STD
+
+template class __basic_string_common<true>;
+
+template class basic_string<char>;
+template class basic_string<wchar_t>;
+
+template
+    string
+    operator+<char, char_traits<char>, allocator<char> >(char const*, string const&);
+
+int
+stoi(const string& str, size_t* idx, int base)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    long r = strtol(p, &ptr, base);
+    if (r < numeric_limits<int>::min() || numeric_limits<int>::max() < r)
+        ptr = const_cast<char*>(p);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoi: no conversion");
+        throw out_of_range("stoi: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return static_cast<int>(r);
+}
+
+int
+stoi(const wstring& str, size_t* idx, int base)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    long r = wcstol(p, &ptr, base);
+    if (r < numeric_limits<int>::min() || numeric_limits<int>::max() < r)
+        ptr = const_cast<wchar_t*>(p);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoi: no conversion");
+        throw out_of_range("stoi: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return static_cast<int>(r);
+}
+
+long
+stol(const string& str, size_t* idx, int base)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    long r = strtol(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stol: no conversion");
+        throw out_of_range("stol: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+long
+stol(const wstring& str, size_t* idx, int base)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    long r = wcstol(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stol: no conversion");
+        throw out_of_range("stol: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+unsigned long
+stoul(const string& str, size_t* idx, int base)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    unsigned long r = strtoul(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoul: no conversion");
+        throw out_of_range("stoul: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+unsigned long
+stoul(const wstring& str, size_t* idx, int base)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    unsigned long r = wcstoul(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoul: no conversion");
+        throw out_of_range("stoul: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+long long
+stoll(const string& str, size_t* idx, int base)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    long long r = strtoll(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoll: no conversion");
+        throw out_of_range("stoll: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+long long
+stoll(const wstring& str, size_t* idx, int base)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    long long r = wcstoll(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoll: no conversion");
+        throw out_of_range("stoll: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+unsigned long long
+stoull(const string& str, size_t* idx, int base)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    unsigned long long r = strtoull(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoull: no conversion");
+        throw out_of_range("stoull: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+unsigned long long
+stoull(const wstring& str, size_t* idx, int base)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    unsigned long long r = wcstoull(p, &ptr, base);
+    if (ptr == p)
+    {
+#ifndef _LIBCPP_NO_EXCEPTIONS
+        if (r == 0)
+            throw invalid_argument("stoull: no conversion");
+        throw out_of_range("stoull: out of range");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    }
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+float
+stof(const string& str, size_t* idx)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    int errno_save = errno;
+    errno = 0;
+    double r = strtod(p, &ptr);
+    swap(errno, errno_save);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    if (errno_save == ERANGE)
+        throw out_of_range("stof: out of range");
+    if (ptr == p)
+        throw invalid_argument("stof: no conversion");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return static_cast<float>(r);
+}
+
+float
+stof(const wstring& str, size_t* idx)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    int errno_save = errno;
+    errno = 0;
+    double r = wcstod(p, &ptr);
+    swap(errno, errno_save);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    if (errno_save == ERANGE)
+        throw out_of_range("stof: out of range");
+    if (ptr == p)
+        throw invalid_argument("stof: no conversion");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return static_cast<float>(r);
+}
+
+double
+stod(const string& str, size_t* idx)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    int errno_save = errno;
+    errno = 0;
+    double r = strtod(p, &ptr);
+    swap(errno, errno_save);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    if (errno_save == ERANGE)
+        throw out_of_range("stod: out of range");
+    if (ptr == p)
+        throw invalid_argument("stod: no conversion");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+double
+stod(const wstring& str, size_t* idx)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    int errno_save = errno;
+    errno = 0;
+    double r = wcstod(p, &ptr);
+    swap(errno, errno_save);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    if (errno_save == ERANGE)
+        throw out_of_range("stod: out of range");
+    if (ptr == p)
+        throw invalid_argument("stod: no conversion");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+long double
+stold(const string& str, size_t* idx)
+{
+    char* ptr;
+    const char* const p = str.c_str();
+    int errno_save = errno;
+    errno = 0;
+    long double r = strtold(p, &ptr);
+    swap(errno, errno_save);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    if (errno_save == ERANGE)
+        throw out_of_range("stold: out of range");
+    if (ptr == p)
+        throw invalid_argument("stold: no conversion");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+long double
+stold(const wstring& str, size_t* idx)
+{
+    wchar_t* ptr;
+    const wchar_t* const p = str.c_str();
+    int errno_save = errno;
+    errno = 0;
+    long double r = wcstold(p, &ptr);
+    swap(errno, errno_save);
+#ifndef _LIBCPP_NO_EXCEPTIONS
+    if (errno_save == ERANGE)
+        throw out_of_range("stold: out of range");
+    if (ptr == p)
+        throw invalid_argument("stold: no conversion");
+#endif  // _LIBCPP_NO_EXCEPTIONS
+    if (idx)
+        *idx = static_cast<size_t>(ptr - p);
+    return r;
+}
+
+string to_string(int val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%d", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(unsigned val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%u", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(long val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%ld", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(unsigned long val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%lu", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(long long val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%lld", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(unsigned long long val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%llu", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(float val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%f", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(double val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%f", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+string to_string(long double val)
+{
+    string s;
+    s.resize(s.capacity());
+    while (true)
+    {
+        size_t n2 = static_cast<size_t>(snprintf(&s[0], s.size()+1, "%Lf", val));
+        if (n2 <= s.size())
+        {
+            s.resize(n2);
+            break;
+        }
+        s.resize(n2);
+    }
+    return s;
+}
+
+wstring to_wstring(int val)
+{
+    const size_t n = (numeric_limits<int>::digits / 3)
+          + ((numeric_limits<int>::digits % 3) != 0)
+          + 1;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%d", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(unsigned val)
+{
+    const size_t n = (numeric_limits<unsigned>::digits / 3)
+          + ((numeric_limits<unsigned>::digits % 3) != 0)
+          + 1;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%u", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(long val)
+{
+    const size_t n = (numeric_limits<long>::digits / 3)
+          + ((numeric_limits<long>::digits % 3) != 0)
+          + 1;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%ld", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(unsigned long val)
+{
+    const size_t n = (numeric_limits<unsigned long>::digits / 3)
+          + ((numeric_limits<unsigned long>::digits % 3) != 0)
+          + 1;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%lu", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(long long val)
+{
+    const size_t n = (numeric_limits<long long>::digits / 3)
+          + ((numeric_limits<long long>::digits % 3) != 0)
+          + 1;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%lld", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(unsigned long long val)
+{
+    const size_t n = (numeric_limits<unsigned long long>::digits / 3)
+          + ((numeric_limits<unsigned long long>::digits % 3) != 0)
+          + 1;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%llu", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(float val)
+{
+    const size_t n = 20;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%f", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(double val)
+{
+    const size_t n = 20;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%f", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+wstring to_wstring(long double val)
+{
+    const size_t n = 20;
+    wstring s(n, wchar_t());
+    s.resize(s.capacity());
+    while (true)
+    {
+        int n2 = swprintf(&s[0], s.size()+1, L"%Lf", val);
+        if (n2 > 0)
+        {
+            s.resize(static_cast<size_t>(n2));
+            break;
+        }
+        s.resize(2*s.size());
+        s.resize(s.capacity());
+    }
+    return s;
+}
+
+_LIBCPP_END_NAMESPACE_STD