Echelon Neuron - Manual (Page 76)

68 Neuron C Compiler Errors (NCC)
NCC# Description
182 No declaration for formal parameter - int assumed [NCC#182]
The definition of ANSI C permits a declaration at file scope without a type.
Likewise, functions may be declared without a return type. Also, it is
possible to construct a typecast that does not actually contain a type. Such
declarations must default to int, by the ANSI C definition. However, such
declarations are poor programming practice, and may even indicate an
error, thus the compiler issues a warning diagnostic.
Consider the following example:
unsigned long x1, x2; x3;
Note the semicolon following x2. This is most likely a typo, however, ANSI
C permits this and results in x3 being declared by default as an int. Due to
white space rules, this appears the same to the compiler as the following
declaration:
unsigned long x1, x2;
x3;
This is almost certainly not what the programmer intended, yet most C
compilers do not issue a warning in these circumstances.
183 Mixing function prototypes and old-style parameter list not allowed [NCC#183]
Pre-ANSI-C C function declaration syntax is supported, but it is not
recommended. Do not combine these two styles within a single function
definition.
184 No formal parameter matches the parameter declaration [NCC#184]
This diagnostic results from an error of the form shown below, where there
is no declaration for the parameter named b.
void f(a,b) int a; { <fn body> }
185 Invalid parameter declaration in function [NCC#185]
This diagnostic results from certain errors in function definition syntax
such as in the example below:
void f(int, long) { <fn body> }
186 Cannot have a 'timeout' pin on 'neurowire master' object [NCC#186]
The neurowire slave I/O object declaration permits a timeout value. The
neurowire master I/O object declaration does not.
187 Expression must evaluate to a constant [NCC#187]
Expressions in certain Neuron C declarations and initialization statements
must evaluate to compile-time integer constants.