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+{{keywords>wiki library source code example reference}}
+====== tolower ======
+<code cpp>
+    #include <cctype>
+    int tolower( int char );
+</code>
+    Returns lower case type of the character
+===== cpp Sourcecode Example =====
+<code cpp>
+#include <iostream> /* including standard library */
+#include <cctype>
+using namespace std;
+int main ( void )
+{
+  /* convert the Chars "I" and "T" to lowercase */
+  cout << static_cast<char>(tolower('I')) << " WHANT " << static_cast<char>(tolower('T')) << "HIS IN LOWERCASE" << endl;
+return 0;
+}
+</code>
+==== output ====
+    output:
+    i WHANT tHIS IN LOWERCASE

on the occasion of the current invasion of Russia in Ukraine