On 4/1/2019 12:54 PM, Chansey wrote:
My racket project consists of several module files (e.g.: "foo.rkt",
"bar.rkt", ...).
The entry module file is "main.rkt"
These files call "printf" in different places of the code (But
"printf" only can print messages to REPL).
My question is:
Is there any way to redefine "printf" in main.rkt in order to print
messages to a file?
"printf" doesn't write to the REPL per se - it writes to the current
output port (which may lead to the REPL). Depending on how your code is
structured, it may be as easy as:
(with-output-to-file <file>
(lambda ()
... ;; your code here
))
Another choice is to use fprintf which allows to choose the output
destination.
George
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