Function tfe_einsum_rrule_f64 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn tfe_einsum_rrule_f64(
    subscripts: *const c_char,
    operands: *const *const TfeTensorF64,
    num_operands: usize,
    cotangent: *const TfeTensorF64,
    grads_out: *mut *mut TfeTensorF64,
    status: *mut tfe_status_t,
)

Reverse-mode rule (VJP) for einsum.

Safety

• subscripts must be a valid null-terminated C string.
• operands must point to an array of num_operands valid tensor pointers.
• cotangent must be a valid, non-null tensor pointer.
• grads_out must point to a caller-allocated array of num_operands mutable *mut TfeTensorF64 pointers.
• status must be a valid, non-null pointer.

Examples (C)

tfe_tensor_f64 *grads[2];
tfe_status_t status;
const tfe_tensor_f64 *ops[] = {a, b};
tfe_einsum_rrule_f64("ij,jk->ik", ops, 2, grad_c, grads, &status);