Ben Combee wrote:
> At 02:19 PM 1/5/2005, you wrote:
>> I'm trying to compile an ARM static library (fdlibm), but if i don't
>> check
>> the force C++ compilation box
>> the function within are not found when i try to use this lib in a
>> project.
>>
>> Is this normal ? any config i missed ?
>
>
> ARM name mangling... if you compiled the library as C code, not C++
> code, then the prototypes for calling the library from your C++ code
> need to be surrounded by an
>
> extern "C" {
> }
>
> block to tell the compiler that these are C functions.
... and a common way to do this is to have one .h file that contains
all your C-style stuff in it, and #include that .h file from both
C (library implementation) and C++ code (client) code. The way
you accomplish this is to put
#ifdef __cplusplus
extern "C" {
#endif
before all your function prototypes, and put
#ifdef __cplusplus
} // extern "C"
#endif
after the prototypes.
Then, when building your library as C source, the compiler sees
no "extern" or anything, but when using the .h file from C++, the
prototypes are surrounded with the appropriate stuff.
- Logan
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