Add c++ keywords to QAPI helper script

Add c++ keywords to avoid errors in compiling with c++ compiler.
This also renames class member of PciDeviceInfo to q_class.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>

hmp.c

@@ -528,7 +528,7 @@ static void hmp_info_pci_device(Monitor *mon, const PciDeviceInfo *dev)
     if (dev->class_info.has_desc) {
         monitor_printf(mon, "%s", dev->class_info.desc);
     } else {
-        monitor_printf(mon, "Class %04" PRId64, dev->class_info.class);
+        monitor_printf(mon, "Class %04" PRId64, dev->class_info.q_class);
     }
 
     monitor_printf(mon, ": PCI device %04" PRIx64 ":%04" PRIx64 "\n",

hw/pci/pci.c

@@ -1461,7 +1461,7 @@ static PciDeviceInfo *qmp_query_pci_device(PCIDevice *dev, PCIBus *bus,
     info->function = PCI_FUNC(dev->devfn);
 
     class = pci_get_word(dev->config + PCI_CLASS_DEVICE);
-    info->class_info.class = class;
+    info->class_info.q_class = class;
     desc = get_class_desc(class);
     if (desc->desc) {
         info->class_info.has_desc = true;

scripts/qapi.py

@@ -236,9 +236,19 @@ def c_var(name, protect=True):
     # GCC http://gcc.gnu.org/onlinedocs/gcc-4.7.1/gcc/C-Extensions.html
     # excluding _.*
     gcc_words = set(['asm', 'typeof'])
+    # C++ ISO/IEC 14882:2003 2.11
+    cpp_words = set(['bool', 'catch', 'class', 'const_cast', 'delete',
+                     'dynamic_cast', 'explicit', 'false', 'friend', 'mutable',
+                     'namespace', 'new', 'operator', 'private', 'protected',
+                     'public', 'reinterpret_cast', 'static_cast', 'template',
+                     'this', 'throw', 'true', 'try', 'typeid', 'typename',
+                     'using', 'virtual', 'wchar_t',
+                     # alternative representations
+                     'and', 'and_eq', 'bitand', 'bitor', 'compl', 'not',
+                     'not_eq', 'or', 'or_eq', 'xor', 'xor_eq'])
     # namespace pollution:
     polluted_words = set(['unix'])
-    if protect and (name in c89_words | c99_words | c11_words | gcc_words | polluted_words):
+    if protect and (name in c89_words | c99_words | c11_words | gcc_words | cpp_words | polluted_words):
         return "q_" + name
     return name.replace('-', '_').lstrip("*")