from cffi import FFI ffi = FFI() ffi.cdef(""" double sin(double); """) lib = ffi.set_source("_math", None) lib.code(""" #include""")
from cffi import FFI ffi = FFI() ffi.cdef(""" int add(int, int); """) lib = ffi.set_source("_custom_add_library", """ #include "custom_add.h" """)This code defines a C function definition for a custom add function, and then uses set_source to generate and compile the C code provided in a custom_add.h file. It is difficult to determine the package library from these examples alone, as they are standalone code snippets without any package dependencies specified. However, set_source is often used in conjunction with external C libraries or existing C code, so the package library could be any C library or code that is being interfaced with.