3 files changed, 26 insertions, 4 deletions
diff --git a/src/parser.js b/src/parser.js
index 6da567db..40bffff0 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -68,6 +68,7 @@ function pointingLevels(type) {
 
 function toNiceIdent(ident) {
   if (parseFloat(ident) == ident) return ident;
+  if (ident == 'null') return '0'; // see parseNumerical
   return ident.replace(/[" \.@%:<>,\*]/g, '_');
 }
 
@@ -325,6 +326,10 @@ function parseNumerical(value, type) {
     // "The one non-intuitive notation for constants is the hexadecimal form of floating point constants."
     return IEEEUnHex(value);
   }
+  if (value == 'null') {
+    // NULL *is* 0, in C/C++. No JS null! (null == 0 is false, etc.)
+    return '0';
+  }
   return value;
 }
 
@@ -2139,12 +2144,11 @@ function JSify(data) {
     item.JS = (item.overrideSSA ? '' : 'var ') + toNiceIdent(item.ident);
 
     var type = item.value.type.text;
-    var value = item.value.JS;
+    var value = parseNumerical(item.value.JS);
     //print("zz var: " + item.JS);
     var impl = getVarData(item.funcData, item.ident);
     switch (impl) {
       case VAR_NATIVE: {
-        value = parseNumerical(value, type);
         break;
       }
       case VAR_NATIVIZED: {
diff --git a/src/snippets.js b/src/snippets.js
index 83cc26e6..5d84f1a0 100644
--- a/src/snippets.js
+++ b/src/snippets.js
@@ -56,6 +56,10 @@ var Snippets = {
       }
     }
   },
+
+  __assert_fail: function(condition, file, line) {
+    throw 'Assertion failed: ' + Pointer_stringify(condition);//JSON.stringify(arguments)//condition;
+  },
 };
 
 // Aliases
diff --git a/tests/runner.py b/tests/runner.py
index eae225b4..205fe2b2 100644
--- a/tests/runner.py
+++ b/tests/runner.py
@@ -357,11 +357,25 @@ class T(unittest.TestCase):
               c = c->next;
             } while (c != chunk);
  
-            printf("*%d*\\n", total);
+            printf("*%d,%d*\\n", total, b.next);
+            // NULL *is* 0, in C/C++. No JS null! (null == 0 is false, etc.)
+
             return 0;
           }
         '''
-        self.do_test(src, '*1410*')
+        self.do_test(src, '*1410,0*')
+
+    def test_assert(self):
+        src = '''
+          #include <stdio.h>
+          #include <assert.h>
+          int main() {
+            assert(1 == true); // pass
+            assert(1 == false); // fail
+            return 1;
+          }
+        '''
+        self.do_test(src, 'Assertion failed: 1 == false')
 
     def test_class(self):
         src = '''