Echelon Neuron - Manual (Page 84)

76 Neuron C Compiler Errors (NCC)
NCC# Description
237 Unusual use of function address as value [NCC#237]
This message would occur in a situation like the following:
int f(void) {return 0;}
...
int g(void) {
int
x;
x = 1;
if (f) { // Unusual use of function
// address
x = 2;
}
return
x;
}
Technically, C permits such a use as shown. Such an expression has little
use in Neuron C, however. The programmer most likely wanted to specify
"if (f( )) { ...". In other words, the syntax of ANSI C permits a construct that
is most likely a programming error, and the Neuron C compiler flags it for
you.
238 File write error - is disk full? [NCC#238]
The compiler encountered an error writing to the output file(s). Check that
the output media is not write-protected, and that sufficient disk space
exists. It is possible, for extremely large programs, that a megabyte or
more of temporary disk space would be needed during compilation.
239 A msg_tag declaration is not permitted if micro_interface [NCC#239}
Once the #pragma micro_interface appears, the program cannot declare
any network variables or message tags.
240 This event expression is not permitted - firmware restriction [NCC#240]
The special event keywords offline, online, and wink cannot be combined
into other expressions when used in the when clause. See the
Additional
Predefined Events section in the Neuron C Programmer's Guide for more
explanation.
243 Keyword 'sync' was ignored for polled output network variable [NCC#243]
A sync output network variable is propagated each time its value is
updated. A polled output network variable is never sent unless a reader
device requests its value with a network variable poll. The two options are
not compatible.
244 Cannot disable netvar_processing with Net Vars declared [NCC#244]
The directive #pragma netvar_processing_off is not permitted once network
variables have already been declared in a program. Likewise, declarations
of network variables are not permitted in a program once this directive has
been encountered. This pragma can only be used with the LonBuilder
Microprocessor Interface Program (MIP).