Merge pull request #50 from VCTLabs/json-support-double

json.hh: fix bug in to_double()
VCTLabs · May 5, 2023 · 0450757 · 0450757
2 parents 63e505a + fb0afbc
commit 0450757
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Showing 3 changed files with 10 additions and 1 deletion.
diff --git a/inc/json.hh b/inc/json.hh
@@ -66,7 +66,7 @@ class json {
     }
 
     double to_double() const {
-        int value = -1;
+        double value = -1;
         if (obj) value = json_object_get_double(obj);
         return value;
     }

diff --git a/test/json_test.cpp b/test/json_test.cpp
@@ -24,6 +24,14 @@ int main(int argc, char **argv)
     cout << "Display whole thing..." << endl;
     cout << snook.dump() << endl;
 
+    double blue = snook.get_field("blueness").to_double();
+    double blue_ratio = blue / 1.5e9;
+    double blue_error = 1.0 - blue_ratio;
+    if (blue_error < 1e-4 && blue_error > -1e-4)
+        cout << "OK double value is close enough" << endl;
+    else
+        cout << "ERROR double value seems fishy" << endl;
+
     if (snook.has_field("betook"))
         cout << "OK this field exists" << endl;
     else

diff --git a/test/json_test.out b/test/json_test.out
@@ -11,6 +11,7 @@ Display whole thing...
   },
   "blueness":1500000000.0
 }
+OK double value is close enough
 OK this field exists
 OK this field does not exist
 OK these objects match