MPLAB C Compiler for PIC24 MCUs and dsPIC DSCs ... - Microchip

Diagnostics
too many arguments for format
When checking the argument list of a call to printf, scanf, etc., the compiler found that
the number of actual arguments was more than that required by the format string.
traditional C ignores #‘directive’ with the # indented
Traditionally, a directive is ignored unless its # is in column 1.
traditional C rejects initialization of unions
Unions cannot be initialized in traditional C.
traditional C rejects the ‘ul’ suffix
Suffix ‘u’ is not valid in traditional C.
traditional C rejects the unary plus operator
The unary plus operator is not valid in traditional C.
trigraph ??char converted to char
Trigraphs, which are a three-character sequence, can be used to represent symbols
that may be missing from the keyboard. Trigraph sequences convert as follows:
??( = [ ??) = ] ??< = { ??> = } ??= = # ??/ = \ ??' = ^ ??! = | ??- = ~
trigraph ??char ignored
Trigraph sequence is being ignored. char can be (, ), , =, /, ', !, or -
type defaults to ‘int’ in declaration of ‘identifier’
In the absence of an explicit type declaration for the specified identifier, the compiler
assumes that its type is int.
type mismatch with previous external decl
previous external decl of ‘identifier’
The type of the specified identifier does not match the previous declaration.
type mismatch with previous implicit declaration
An explicit declaration conflicts with a previous implicit declaration.
type of ‘identifier’ defaults to ‘int’
In the absence of an explicit type declaration, the compiler assumes that identifier’s
type is int.
type qualifiers ignored on function return type
The type qualifier being used with the function return type is ignored.
U
undefining ‘defined’
‘defined’ cannot be used as a macro name and should not be undefined.
undefining ‘name’
The #undef directive was used on a previously defined macro name ‘name’.
union cannot be made transparent
The transparent_union attribute was applied to a union, but the specified variable
does not satisfy the requirements of that attribute.
‘union identifier’ declared inside parameter list
The specified union is declared inside a function parameter list. It is usually better
programming practice to declare unions outside parameter lists, since they can never
become complete types when defined inside parameter lists.
© 2008 Microchip Technology Inc. DS51284H-page 199