Fixed compilation error on Windows

aa6b055b · Peter Eastman · 01da523c · aa6b055b
Commit aa6b055b authored Jul 19, 2011 by Peter Eastman
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Showing with 4 additions and 2 deletions

platforms/reference/src/SimTKReference/fftpack.h platforms/reference/src/SimTKReference/fftpack.h +4 -2

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--- a/platforms/reference/src/SimTKReference/fftpack.h
+++ b/platforms/reference/src/SimTKReference/fftpack.h
@@ -51,13 +51,15 @@ public:
    t_complex operator-(const t_complex& c) const {
        return t_complex(re-c.re, im-c.im);
    }
-    t_complex operator+=(const t_complex& c) {
+    t_complex& operator+=(const t_complex& c) {
        re += c.re;
        im += c.im;
+        return *this;
    }
-    t_complex operator-=(const t_complex& c) {
+    t_complex& operator-=(const t_complex& c) {
        re -= c.re;
        im -= c.im;
+        return *this;
    }
 };