trigraphs are removed in c++ 17
Unicode is a worthy successor to trigraphs -- no need for pre-processing!
Guess with tri-graph elimination & awk getting unicode support will have to gawk C with cpp using pipology theory.
But think the cpp has to go away first, after enough sed.
https://grayson.sh/blogs/using-piphilology-to-hide-strings
https://www.gnu.org/software/gawk/manual/gawk.html#Signature...
So if you started programming anywhere after the point in time when you needed to hand off your code to a punch card operator, you're unlikely to have seen them.
#include <stdlib.h>
int main()
{
int *foo = malloc(sizeof(int));
return 0;
}
There's actually another subtle different in there that main() means "unspecified arguments" in C, and "no arguments" in C++. ("No arguments" in C would be main(void).) However, it's no longer commonly used that way in C, but casts from void * to other types is very common in C.
The modern C++ way to do this ~safely isn't legal C, and yet the type pun isn't safe in C++. I believe using memcpy() to launder the bits is legal in both languages and in some cases your compiler can figure out what you're doing and not actually emit the unnecessary copy.
You have to explicitly pass -std=c17 (or whatever) to get standard-conforming behavior including trigraphs.