C Interoperability

Importing C Libraries

import "math_library.c"
import "string_operations.c"

Calling C Functions

int result = c_function(arg1, arg2)

Type Mapping

Cpyte	C
int	int
int64	long long
uint64	unsigned long long
float	double
str	char*
int*	int*
void*	void*

Example

import "test_import.c"

def main():
    int x = my_add(3, 4)
    print(x)
    x = my_double(10)
    print(x)

Importing Cpy Files

import "math_utils.cpy"
import "data_structs.cpy"

Only public functions are exported.

# math_utils.cpy
public def add(a: int, b: int) -> int:
    return a + b

private def helper():
    pass

# main.cpy
import "math_utils.cpy"

def main():
    int result = add(3, 4)
    print(result)