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Function std.uni.sicmp
Does basic case-insensitive comparison of r1 and r2.
This function uses simpler comparison rule thus achieving better performance
than icmp. However keep in mind the warning below.
int sicmp(S1, S2)(
scope S1 r1,
scope S2 r2
)
if (isInputRange!S1 && isSomeChar!(ElementEncodingType!S1) && isInputRange!S2 && isSomeChar!(ElementEncodingType!S2));
Parameters
| Name | Description |
|---|---|
| r1 | an input range of characters |
| r2 | an input range of characters |
Returns
An int that is 0 if the strings match,
<0 if r1 is lexicographically "less" than r2,
>0 if r1 is lexicographically "greater" than r2
Warning
This function only handles 1:1 code point mapping and thus is not sufficient for certain alphabets like German, Greek and few others.
See Also
Example
writeln(sicmp("Август", "авгусТ")); // 0
// Greek also works as long as there is no 1:M mapping in sight
writeln(sicmp("ΌΎ", "όύ")); // 0
// things like the following won't get matched as equal
// Greek small letter iota with dialytika and tonos
assert(sicmp("ΐ", "\u03B9\u0308\u0301") != 0);
// while icmp has no problem with that
writeln(icmp("ΐ", "\u03B9\u0308\u0301")); // 0
writeln(icmp("ΌΎ", "όύ")); // 0
Authors
Dmitry Olshansky
License
Copyright © 1999-2025 by the D Language Foundation | Page generated by ddox.