07-27-2023, 10:47 AM
I know that using
<!-- language: lang-bash -->
gcc -dM -E - < /dev/null
can get the predifined macros of `gcc`, but what does the
<!-- language: lang-bash -->
- < /dev/null
mean in this command? Per my understanding, there should be a option behind `-`. I have tried to search on [gcc manual][1], but can't find answers.
[1]:
<!-- language: lang-bash -->
gcc -dM -E - < /dev/null
can get the predifined macros of `gcc`, but what does the
<!-- language: lang-bash -->
- < /dev/null
mean in this command? Per my understanding, there should be a option behind `-`. I have tried to search on [gcc manual][1], but can't find answers.
[1]:
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