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compare two strings with an equivalence mapping
Usage:
int res = strneqvcmp( str1, str2, ct );
Where the arguments are:
| Name | Type | Description | |
| —– | —– | ————- | |
| str1 | char const * | first string | |
| str2 | char const * | second string | |
| ct | int | compare length | |
| returns | int | the difference between two differing characters |
Using a character mapping, two strings are compared for "equivalence".
Each input character is mapped to a comparison character and the
mapped-to characters are compared for the two NUL terminated input strings.
The comparison is limited to ct bytes.
This function name is mapped to option_strneqvcmp so as to not conflict
with the POSIX name space.
none checked. Caller responsible for seg faults.