/src/libs/zbxserver/macrofunc.c: 148 in zbx_calculate_macro_function()
>>> Execution cannot reach this statement: "case MACRO_FUNC_REGSUB:".
Incorrect assignment:

122       if (0 == strcmp(buf, "regsub"))
123                macro_func = MACRO_FUNC_IREGSUB;
124        else if (0 == strcmp(buf, "iregsub"))
125                macro_func = MACRO_FUNC_IREGSUB;

Found by Coverity: CID 154187.