mi_integer mi_version_comparison(s1, s2)
   mi_char1 *s1;
   mi_char *s2;

s1

is the starting string address of the version number to compare.

s2

is the ending string address of the version number to compare.

The mi_version_comparison( ) function compares the version for the major, minor, and interim version numbers of two database servers. For example, for IBM Informix Dynamic Server 9.40.UC6, the major version is 9, the minor version is 40, and the interim number is 6. If the interim number is omitted in one of the strings, then both strings will only be compared for only the major and minor release numbers.

MI_ERROR (-1)

indicates an error in the strings that are passed.

2

indicates that the value of s1 is greater than the value of s2.

0

indicates that the values of s1 and s2 are equal.

-2

indicates that the value of s1 is less than the value of s2.

See also the description of mi_server_library_version( ).