-/*@{
- Functions to check, whether a mode is signed, float, int, character,
- reference, num, data, datab or dataM.
-
- For more exact definitions read the corresponding pages
- in the firm documentation or the following enumeration
-
- The set of "float" is defined as:
- float = {irm_F, irm_D, irm_E}
-
- The set of "int" is defined as:
- int = {irm_Bs, irm_Bu, irm_Hs, irm_Hu, irm_Is, irm_Iu, irm_Ls, irm_Lu}
-
- The set of "reference" is defined as:
- reference = {irm_P}
-
- The set of "num" is defined as:
- num = {float || int}
-
- The set of "data" is defined as:
- data = {num || reference}
-
- The set of "datab" is defined as:
- datab = {data || irm_b }
-
- The set of "dataM" is defined as:
- dataM = {data || irm_M}
-*/
-