Difference between fprintf and fwrite?

2012 10 25
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更新时间：2017 1 18
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Hello, I am using a serial communication and I want to send some data. I was wondering what is the actual difference between the fprintf and fwrite function? Thanks!

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Azzi Abdelmalek
Azzi Abdelmalek 2012-10-25

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  • fprintf, write data to text file
  • fwrite, write data to binary file

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David J. Mack
David J. Mack 2017-1-18
To be really precise, fprintf writes data in text, fwrite in binary format, but both functions can write to the same (mixed-type) file.

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Sachin Ganjare
Sachin Ganjare 2012-10-25

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fprintf blocks the command line to execute other commands while the data is getting transferred while fwrite doesn't.

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Ivana
Ivana 2012-10-25
Ok, so what if I want the program to run as fast as possible? Which one shall I use then?
Sachin Ganjare
Sachin Ganjare 2012-10-25
fprintf() is slow, because it does formatting. Writing one character at a time is slow in any case.

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