fixed all errors

backend/complex_double.m4

backend/complex_float.m4

examples/complex_double_addmul.c

examples/complex_double_muladd.c

examples/complex_double_product.c

examples/complex_double_scal_product.c

examples/complex_double_sum.c

examples/complex_float_mulsub.c

examples/complex_float_scalar_sub.c

examples/complex_float_sub.c

examples/complex_float_submul.c

examples/double_sum.c

examples/float_mul.c

generated/complex_double_product.c

generated/double_sum.c

sve.m4