modbus_strerror(3) ================= NAME ---- modbus_strerror - return the error message SYNOPSIS -------- *const char *modbus_strerror(*int 'errnum');* DESCRIPTION ----------- The _modbus_strerror()_ function shall return a pointer to an error message string corresponding to the error number specified by the 'errnum' argument. As libmodbus defines additional error numbers over and above those defined by the operating system, applications should use _modbus_strerror()_ in preference to the standard _strerror()_ function. RETURN VALUE ------------ The _modbus_strerror()_ function shall return a pointer to an error message string. ERRORS ------ No errors are defined. EXAMPLE ------- .Displaying an error message when a Modbus connection cannot be established [source,c] ------------------- if (modbus_connect(ctx) == -1) { fprintf(stderr, "Connection failed: %s\n", modbus_strerror(errno)); abort(); } ------------------- SEE ALSO -------- linkmb:libmodbus AUTHORS ------- The libmodbus documentation was written by Stéphane Raimbault