Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

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

c - What's the difference between gets and scanf?

If the code is

scanf("%s
",message)  

vs

gets(message)

what's the difference?It seems that both of them get input to message.

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 Answer

0 votes
by (71.8m points)

The basic difference [in reference to your particular scenario],

  • scanf() ends taking input upon encountering a whitespace, newline or EOF

  • gets() considers a whitespace as a part of the input string and ends the input upon encountering newline or EOF.

However, to avoid buffer overflow errors and to avoid security risks, its safer to use fgets().


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 OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...