extern "C"
This project demonstrates how to mix C with other programming languages. It aims to create a Rosetta Stone of the procedure shown in the following pseudocode:
// use programming language x
func main() {
caller_language := "x-language";
caller_stack := generate_random_number();
println("[%04d] start of x-language main procedure", caller_stack);
y_language_procedure(caller_language, caller_stack);
println("[{%04d}] end of x-language main procedure", caller_stack);
}
! use programming language y
FUNCTION y_language_procedure(caller_language, caller_stack)
callee_stack = generate_random_number()
PRINT "[%04d] start of a y-language procedure, called by [%04d], %s", callee_stack, caller_language, caller_stack
PRINT "[%04d] start of a y-language procedure", callee_stack
END FUNCTION y_language_procedure
As shown above, the main function written in x language calls a function written in y language. The output of the whole procedure looks like this:
[4199] start of x-language main procedure
[8549] start of a y-language procedure, called by x-language [4199]
[8549] end of a y-language procedure
[4199] end of x-language main procedure
The cross-language API, as mentioned above, needs to receive a integer and a string, in order to show their basic ability of mix programming.
All the callee procedures will be archived into static libraries using their own toolchain. For example, to build a C static library, instead of using cargo
, we use gcc
.
Currently implemented:
Caller | Callee |
---|---|
C | golang |
C | rust |
golang | C |
rust | C |
Will implement:
- C++
Usage
Fisrtly, change directory to one of the x-call-y
. If you want to build all x-call-y
s, just stay in the root directory.
To build the project:
make
To clean the build targets:
make clean