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That wasn't quite what I was trying to show with the snippet - I was intimating that you can use tcc to run C directly in something like a shell script. If you
by jonathonf 6y ago
That wasn't quite what I was trying to show with the snippet - I was intimating that you can use tcc to run C directly in something like a shell script.
If you want to make `tcc -w -run` etc. more convenient then:
alias trun='tcc -w -run - <<<'
trun 'main() { printf("Hello\n"); return 0; }'
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I can't edit my parent comment now, but it can be improved with e.g.
//usr/bin/tcc -run $0; exit
main() { printf("Hello\n"); return 0; }
- jolmg 6y ago> That wasn't quite what I was trying to show with the snippet - I was intimating that you can use tcc to run C directly in something like a shell script. I know, but the first example in the link was: $ runc 'printf("%s\n", "Hello!");' Hello! So I figured I'd complement your example use with one that was more analogous to that. > I can't edit my parent comment now, but it can be improved with e.g. To be honest, I liked your original example more. Using that `//` "shebang" depends on what shell it's invoked from, and it wouldn't work when calling exec from other languages. For example, with your last example using `//`: $ python -c 'import subprocess; subprocess.run(["./hello-tcc-double-slash-shebang.c"])' Traceback (most recent call last): File "<string>", line 1, in <module> File "/usr/lib/python3.8/subprocess.py", line 489, in run with Popen(*popenargs, **kwargs) as process: File "/usr/lib/python3.8/subprocess.py", line 854, in __init__ self._execute_child(args, executable, preexec_fn, close_fds, File "/usr/lib/python3.8/subprocess.py", line 1702, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) OSError: [Errno 8] Exec format error: './hello-tcc-double-slash-shebang.c' while it would work with the `#!` shebang, since that's handled by the kernel.