练习4.34
a) float->bool
b) int->float->double
c) char->int->double
练习4.35
a) char->int->char
b) int->unsigned int->float
c) float->unsigned int->double
d) int->float->double->char
c++ primer 4.11.1节练习答案
原文：http://www.cnblogs.com/wuyinfenghappy/p/7265225.html
