[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT

sdk/lib/ucrt/time/strdate.cpp

@@ -0,0 +1,84 @@
+//
+// strdate.cpp
+//
+//      Copyright (c) Microsoft Corporation. All rights reserved.
+//
+// The strdate() family of functions, which return the current data as a string.
+//
+#include <corecrt_internal_securecrt.h>
+#include <corecrt_internal_time.h>
+
+
+// Returns the current date as a string of the form "MM/DD/YY".  These functions
+// return an error code on failure, or zero on success.  The buffer must be at
+// least nine characters in size.
+template <typename Character>
+static errno_t __cdecl common_strdate_s(
+    _Out_writes_z_(size_in_chars)   Character*  const   buffer,
+    _In_  _In_range_(>=, 9)         size_t      const   size_in_chars
+    ) throw()
+{
+    _VALIDATE_RETURN_ERRCODE(buffer != nullptr && size_in_chars > 0, EINVAL);
+    _RESET_STRING(buffer, size_in_chars);
+    _VALIDATE_RETURN_ERRCODE(size_in_chars >= 9, ERANGE);
+
+    SYSTEMTIME local_time;
+    GetLocalTime(&local_time);
+
+    int const month = local_time.wMonth;
+    int const day   = local_time.wDay;
+    int const year  = local_time.wYear % 100;
+
+    static Character const zero_char = static_cast<Character>('0');
+
+#pragma warning(disable:__WARNING_POTENTIAL_BUFFER_OVERFLOW_HIGH_PRIORITY) // 26015
+
+    // Store the components of the date into the string in MM/DD/YY form:
+    buffer[0] = static_cast<Character>(month / 10 + zero_char); // Tens of month
+    buffer[1] = static_cast<Character>(month % 10 + zero_char); // Units of month
+    buffer[2] = static_cast<Character>('/');
+    buffer[3] = static_cast<Character>(day   / 10 + zero_char); // Tens of day
+    buffer[4] = static_cast<Character>(day   % 10 + zero_char); // Units of day
+    buffer[5] = static_cast<Character>('/');
+    buffer[6] = static_cast<Character>(year  / 10 + zero_char); // Tens of year
+    buffer[7] = static_cast<Character>(year  % 10 + zero_char); // Units of year
+    buffer[8] = static_cast<Character>('\0');
+
+    return 0;
+}
+
+extern "C" errno_t __cdecl _strdate_s(char* const buffer, size_t const size_in_chars)
+{
+    return common_strdate_s(buffer, size_in_chars);
+}
+
+extern "C" errno_t __cdecl _wstrdate_s(wchar_t* const buffer, size_t const size_in_chars)
+{
+    return common_strdate_s(buffer, size_in_chars);
+}
+
+
+
+// Returns the current date as a string of the form "MM/DD/YY".  These functions
+// assume that the provided result buffer is at least nine characters in length.
+// Each returns the buffer on success, or null on failure.
+template <typename Character>
+_Success_(return != 0)
+static Character* __cdecl common_strdate(_Out_writes_z_(9) Character* const buffer) throw()
+{
+    errno_t const status = common_strdate_s(buffer, 9);
+    if (status != 0)
+        return nullptr;
+
+    return buffer;
+}
+
+extern "C" char* __cdecl _strdate(char* const buffer)
+{
+    return common_strdate(buffer);
+}
+
+extern "C" wchar_t* __cdecl _wstrdate(wchar_t* const buffer)
+{
+    return common_strdate(buffer);
+}