Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
368 views
in Technique[技术] by (71.8m points)

c - What is the difference between casting to `float` and adding `f` as a suffix when initializing a `float`?

What is the difference between

float f = (float) 99.32 ;

and

float f = 99.32f ;

Both of them compiled and ran successfully.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)
float f = 99.32f ;

That is a float literal, which means a float variable being assigned with a float value directly.

float f = (float) 99.32 ;

That is a float variable that is assigned a double value that is cast to float before being assigned.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...