// This code is Public Domain. Use, modify, and redistribute at will.
// ----------------------------------------------------------------------------
-char * strerror( int errcode ) { /* TODO */ };
+#include <errno.h>
+
+char * strerror( int errcode )
+{
+ switch ( errcode )
+ {
+ case 0:
+ return "no error";
+ break;
+ case EDOM:
+ return "domain error";
+ break;
+ case EILSEQ:
+ return "illegal sequence";
+ break;
+ case ERANGE:
+ return "range error";
+ break;
+ default:
+ return "unknown error";
+ break;
+ }
+}