HCS12 compiler does not throw an error for function arguments number mismatch in declaration and definition

[surabikrishnamu]

A function is declared with 2 arguments, but the definition has only 1 argument

The HCS12 compiler does not throw an error or warning

CodeWarrior IDE version 5.9.0 build 5294 

[surabikrishnamu]

[ZhangJennie]

Hello,

can you please send me a demo project of this problem?

Thanks!

Have a great day,
Jennie Zhang

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[surabikrishnamu]

I have a main.c file which calls the function add

The function add is declared in add.h and defined in add.c

I have added all these files in the project

I don't get an error when I compile the project

[surabikrishnamu]

Hi Alice,

The declaration in add.h has 2 arguments

The definition in add.c has just 1 argument

When I call the function in main.c, I am passing 2 arguments which would result in error

I was expecting an error or warning "wrong number of arguments"

[BlackNight]

Hi Surabi,

I have to disagree that this is a compiler bug/error. You are missing to include

#include "add.h"

inside add.c.

According to the C language, the compiler won't be able (and shall not) produce an error for this. The linker has no chance to detect this neither. If you want to catch something like this, you would have to compile your sources in C++ mode.

I hope this helps,

Erich

[surabikrishnamu · Accepted solution]

Hi Erich,

Thank you for the reply

Enabling C++ in Compiler options does detect this

Thanks

Surabi