[Bug-gsl] gsl_wavelet.h declares missing functions

[Alex Tartakovsky]

gsl_wavelet.h declares functions gsl_wavelet2d_transform_forward, 
gsl_wavelet2d_transform_inverse, gsl_wavelet2d_nstransform_forward, and 
gsl_wavelet2d_nstransform_inverse.  These functions are also documented in the 
manual (pp. 309, 310).  However, no implementations are given in dwt.c.  
Granted these functions are trivial as they should simply set the 
gsl_wavelet_direction argument in the call to the base functions, they still 
managed to go AWOL in two versions already.  Note that test.c does not test 
those functions either. 

 

As a general note, it's all too easy to have a missing function, since a 
declaration without implementation does not usually generate an error.  I 
already reported missing GSL functions in the past; my way of finding those is 
to compile a windows dll using a def file.  I dump all functions declared in 
include files into a def file; any unimplemented function will generate an 
error at this point (at least, that's how it works in MSVC). 

 

Regards, 

Alex Tartakovsky

 

                
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