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[avr-libc-dev] fwrite() not working as expected

From: avr-libc-dev
Subject: [avr-libc-dev] fwrite() not working as expected
Date: Sat, 10 Mar 2018 11:22:01 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

I am trying to use fwrite() to write the first X bytes of a string like
this, but with a wrong output:

auto ret = fwrite("Hello World!", 1, 5, stdout);
printf("%d\n", ret);
// Output: H0

Its documented here:

Can anyone please tell me if this is a bug or if I am doing something
wrong. I am using avr-libc 2.0.0 on Arch Linux with the latest avr-gcc 7.3.0


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