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is_valid_smap_aggregate |
Function (ROM Call 0x3B9) |
Checks whether an expression is a valid aggregate type.
is_valid_smap_aggregate returns TRUE if the expression pointed to by
ptr is a valid aggregate type (i.e. list or valid matrix), otherwise it returns
FALSE. This is not a simple check whether a tag pointed to by
ptr is LIST_TAG. For example, list which consists of
lists which are not equally sized (like {{1,2,3},{4,5}}) are not valid. Also, matrices
whose elements are list or matrices are also not valid aggregate types.
Uses: next_expression_index, remaining_element_count
Used by: push_parse_text, EQU_getNameInfo, push_parse_prgm_or_func_text