move template out of header

1 files changed, 37 insertions, 0 deletions

diff --git a/comphelper/source/misc/string.cxx b/comphelper/source/misc/string.cxx
index 3547de626318..6eb744fc3bdf 100644
--- a/comphelper/source/misc/string.cxx
+++ b/comphelper/source/misc/string.cxx
@@ -401,6 +401,43 @@ bool isdigitAsciiString(const rtl::OUString &rString)
     return tmpl_is_OPER_AsciiString<isdigitAscii>(rString);
 }
 
+namespace
+{
+    template <typename T, typename U> T* string_alloc(sal_Int32 nLen)
+    {
+        //Clearly this is somewhat cosy with the sal implmentation
+
+        //rtl_[u]String contains U buffer[1], so an input of nLen
+        //allocates a buffer of nLen + 1 and we'll ensure a null termination
+
+        T* newStr =
+            (sal::static_int_cast< sal_uInt32 >(nLen)
+               <= ((SAL_MAX_UINT32 - sizeof (T))
+                   / sizeof (U)))
+            ? (T*) rtl_allocateMemory(
+                sizeof (T) + nLen * sizeof (U))
+            : NULL;
+
+        if (!newStr)
+            throw std::bad_alloc();
+
+        newStr->refCount = 1;
+        newStr->length = nLen;
+        newStr->buffer[nLen] = 0;
+        return newStr;
+    }
+}
+
+rtl_uString * SAL_CALL rtl_uString_alloc(sal_Int32 nLen)
+{
+    return string_alloc<rtl_uString, sal_Unicode>(nLen);
+}
+
+rtl_String * SAL_CALL rtl_string_alloc(sal_Int32 nLen)
+{
+    return string_alloc<rtl_String, sal_Char>(nLen);
+}
+
 } }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */