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On Unix-like operating systems stdio.h is usually line-buffered. As putStr uses fputs(3) from stdio.h internally, output will be written to standard out after a newline character is written to the buffer. Since the prompt does not contain a newline, it will only be written to standard output after the user presses return. I encountered this issue on Alpine Linux which uses musl libc (instead of glibc). However, I believe this issue is likely also reproducible with glibc. This commit fixes this issue by flushing standard output after writing the prompt to it. Surprisingly, `src/Idris/IDEMode/REPL.idr` already does this correctly, `src/Idris/REPL.idr` does not though.
9 lines
119 B
Plaintext
9 lines
119 B
Plaintext
1/1: Building bangs (bangs.idr)
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Main> Just 7
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Main> Just 7
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Main> 5
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Main> "12"
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Main> True
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Main> False
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Main> Bye for now!
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