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map a list of characters to the same value
Usage:
strequate( ch_list );
Where the arguments are:
| Name | Type | Description | |
| —– | —– | ————- | |
| ch_list | char const * | characters to equivalence |
Each character in the input string get mapped to the first character in the string. This function name is mapped to option_strequate so as to not conflict with the POSIX name space.
none.