String comparison: Difference between revisions

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 ''cm'' is used for comparision which returns 1,0,-1 like C's strcmp. ''=='' is Equal and ''!='' is NotEqual.
+=={{header|D}}==
+See also [[Empty_string]]
+<lang d>import std.stdio, std.string, std.algorithm;
+void main() {
+    auto s = "abcd";
+    /* Comparing two strings for exact equality */
+    assert (s == "abcd"); // same object
+    /* Comparing two strings for inequality */
+    assert(s != "ABCD"); // different objects
+    /* Comparing the lexical order of two strings;
+    -1 means smaller, 0 means equal, 1 means larger */
+    assert(s.icmp("Bcde") == -1); // case insensitive
+    assert(s.cmp("Bcde") == 1); // case sensitive
+    assert(s.icmp("Aabc") == 1); // case insensitive
+    assert(s.cmp("Aabc") == 1); // case sensitive
+    assert(s.icmp("ABCD") == 0); // case insensitive
+    assert(s.cmp("ABCD") == 1); // case sensitive
+}</lang>
 =={{header|J}}==