Feature Requests item #1578582, was opened at 2006-10-17 01:43
Message generated for change (Comment added) made by mhoenicka
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Category: None
Group: None
Status: Open
Priority: 5
Submitted By: Peter MacDonald (pcmacdon)
Assigned to: Nobody/Anonymous (nobody)
Summary: void * disables typechecking.
Initial Comment:
Using void* for dbi_driver, etc makes debugging
more difficult than it needs to be. One workaround is
to use something like the following in dbi.h
#if ((!defined(DBI_DRIVER_DIR))
||(defined(DBI_NO_VOIDPTRS)))
typedef struct { int unused; } *dbi_driver;
typedef struct { int unused; } *dbi_conn;
typedef struct { int unused; } *dbi_result;
#else
/* opaque type definitions */
typedef void * dbi_driver;
typedef void * dbi_conn;
typedef void * dbi_result;
#endif
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>Comment By: Markus Hoenicka (mhoenicka)
Date: 2006-10-17 14:55
Message:
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Frankly, I don't know why the original libdbi authors used
void* pointers for drivers, connections, and such. As far as
debugging is concerned, I don't see a disadvantage though as
most libdbi functions using one of these as an argument
perform a typecast to a struct* anyway. The structure
members are then available through the pointer on the stack.
How in particular would your suggested change simplify
debugging?
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