Correct C++ input file.

examples/chicane/input_chicane.in

@@ -26,15 +26,15 @@ lattice.elements = monitor sbend1 dipedge1 drift1 dipedge2 sbend2 drift2      \
 lattice.nslice = 25
 
 sbend1.type = sbend
-sbend1.ds = 0.50037       # projected length 0.5 m, angle 2.77 deg
-sbend1.rc = -10.35
+sbend1.ds = 0.500194828041958       # projected length 0.5 m, angle 2.77 deg
+sbend1.rc = -10.3462283686195526
 
 drift1.type = drift
 drift1.ds = 5.0058489435  # projected length 5 m
 
 sbend2.type = sbend
-sbend2.ds = 0.50037       # projected length 0.5 m, angle 2.77 deg
-sbend2.rc = 10.35
+sbend2.ds = 0.500194828041958       # projected length 0.5 m, angle 2.77 deg
+sbend2.rc = 10.3462283686195526
 
 drift2.type = drift
 drift2.ds = 1.0
@@ -44,13 +44,13 @@ drift3.ds = 2.0
 
 dipedge1.type = dipedge   # dipole edge focusing
 dipedge1.psi = -0.048345620280243
-dipedge1.rc = -10.35
+dipedge1.rc = -10.3462283686195526
 dipedge1.g = 0.0
 dipedge1.K2 = 0.0
 
 dipedge2.type = dipedge
 dipedge2.psi = 0.048345620280243
-dipedge2.rc = 10.35
+dipedge2.rc = 10.3462283686195526
 dipedge2.g = 0.0
 dipedge2.K2 = 0.0