CODEWITHSUNDEEP
cfunctioncallc-preprocessor
PumpkinPie
PumpkinPie

Reputation: 169

#Define Entire function call with arguments?

I have a program that I am running on two different compilers, and each compiler has a different file handling library. For example on library requires:

fwrite(buffer,size,elements,file)

While the other is:

f_write(file,buffer,size,elements)

is there anyway I could use a global #define in my main header file inside of a #ifdef statement that would allow me to seamlessly transition between compilers?

Upvotes: 2

Views: 181

Answers (2)

user149341
user149341

Reputation:

Sure:

#ifdef STUPID_COMPILER
# define fwrite(ptr, size, nitems, stream) f_write(stream, ptr, size, nitems)
#endif

Then just use fwrite() in your code -- no wrapper function needed. The preprocessor will translate it to an f_write() call if you're using the compiler/library that requires that.

Upvotes: 7

cnicutar
cnicutar

Reputation: 182619

You could make a new function:

size_t my_fwrite(...)
{
#ifdef REAL_FWRITE
    return fwrite(buffer,size,elements,file);
#elif  F_WRITE
    return f_write(file,buffer,size,elements);
#else
    #error "No fwrite"      
#endif
}

What kind of implementation doesn't provide fwrite but has f_write ?

Upvotes: 2

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