libxx: New sized delete operators are only for C++14

include/nuttx/compiler.h

@@ -76,6 +76,14 @@
 #  define CONFIG_HAVE_BUILTIN_CLZ 1
 #endif
 
+/* C++ support */
+
+#if __cplusplus == 201402L
+#  define CONFIG_HAVE_CXX14 1
+#else
+#  undef CONFIG_HAVE_CXX14
+#endif
+
 /* Attributes
  *
  * GCC supports weak symbols which can be used to reduce code size because
@@ -130,7 +138,7 @@
 #  define inline_function __attribute__ ((always_inline,no_instrument_function))
 #  define noinline_function __attribute__ ((noinline))
 
-/* GCC has does not use storage classes to qualify addressing */
+/* GCC does not use storage classes to qualify addressing */
 
 #  define FAR
 #  define NEAR
@@ -281,6 +289,10 @@
 
 # pragma disable_warning 85
 
+/* C++ support */
+
+#  undef CONFIG_HAVE_CXX14
+
 /* Attributes
  *
  * SDCC does not support weak symbols */
@@ -399,6 +411,10 @@
 #  define IOBJ
 #  define IPTR
 
+/* C++ support */
+
+#  undef CONFIG_HAVE_CXX14
+
 /* Attributes
  *
  * The Zilog compiler does not support weak symbols
@@ -529,6 +545,10 @@
 #  pragma section = ".data_init"
 #  pragma section = ".text"
 
+/* C++ support */
+
+#  undef CONFIG_HAVE_CXX14
+
 /* Unknown compiler *********************************************************/
 
 #else
@@ -538,6 +558,7 @@
 #  undef  CONFIG_HAVE_FUNCTIONNAME
 #  undef  CONFIG_HAVE_FILENAME
 #  undef  CONFIG_HAVE_WEAKFUNCTIONS
+#  undef CONFIG_HAVE_CXX14
 #  define weak_alias(name, aliasname)
 #  define weak_function
 #  define weak_const_function

libxx/libxx_delete_sized.cxx

@@ -37,10 +37,12 @@
 // Included Files
 //***************************************************************************
 
-#include <nuttx/config.h>
+#include <nuttx/compiler.h>
 
 #include "libxx.hxx"
 
+#ifdef CONFIG_HAVE_CXX14
+
 //***************************************************************************
 // Operators
 //***************************************************************************
@@ -68,3 +70,5 @@ void operator delete(FAR void *ptr, unsigned int size)
 {
   lib_free(ptr);
 }
+
+#endif /* CONFIG_HAVE_CXX14 */

libxx/libxx_deletea_sized.cxx

@@ -38,9 +38,12 @@
 //***************************************************************************
 
 #include <nuttx/config.h>
+#include <nuttx/compiler.h>
 
 #include "libxx.hxx"
 
+#ifdef CONFIG_HAVE_CXX14
+
 //***************************************************************************
 // Operators
 //***************************************************************************
@@ -58,3 +61,5 @@ void operator delete[](FAR void *ptr, unsigned int size)
 {
   lib_free(ptr);
 }
+
+#endif /* CONFIG_HAVE_CXX14 */