On success, these functions return S3L_SUCCESS.
In addition, the following conditions will cause these functions to return the associated error code and terminate.
S3L_ERR_ARG_DTYPE - The data type of array a is not one of:
S3L_integer
S3L_float
S3L_double
S3L_complex
S3L_double_complex
S3L_ERR_ARG_COOR - The supplied coordinates are not valid; that is, they do not specify an element of a.