Is struct.h:SCM_STRUCT_* "exported"?

[Doug Evans <xdje42@gmail.com>]

Hi.

Is any of the following exported?
[or are they internal implementation details?]

I can certainly imagine it's the latter, but the DATA versions do
solve the problem (*1) of accessing struct fields as raw values.

#define SCM_STRUCT_DATA(X)              ((scm_t_bits*)SCM_CELL_WORD_1 (X))
#define SCM_STRUCT_DATA_REF(X,I)        (SCM_STRUCT_DATA (X)[(I)])
#define SCM_STRUCT_DATA_SET(X,I,V)      SCM_STRUCT_DATA (X)[(I)]=(V)

[others too, just keeping this email brief]

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(*1): There's still type concerns like void * vs uintptr vs int vs char, etc.
But for a lot of purposes (or at least mine :-)) they'll do.