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.
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
<stephane.raimbault@gmail.com[1]>
NOTES¶
- 1.
- stephane.raimbault@gmail.com
mailto:stephane.raimbault@gmail.com
