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from libc.stdlib cimport malloc
from libc.string cimport strcpy, strlen
cdef char* hello_world = 'hello world'
cdef Py_ssize_t n = strlen(hello_world)
cdef char* c_call_returning_a_c_string():
cdef char* c_string = <char *> malloc((n + 1) * sizeof(char))
if not c_string:
raise MemoryError()
strcpy(c_string, hello_world)
return c_string
cdef void get_a_c_string(char** c_string_ptr, Py_ssize_t *length):
c_string_ptr[0] = <char *> malloc((n + 1) * sizeof(char))
if not c_string_ptr[0]:
raise MemoryError()
strcpy(c_string_ptr[0], hello_world)
length[0] = n
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