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string->pointer and pointer->string have optional encoding arg

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* test-suite/tests/foreign.test ("pointer<->string"): Add test cases.

* libguile/foreign.c (scm_string_to_pointer, scm_pointer_to_string): Add
  optional encoding, and in the pointer->string case, length arguments.

* libguile/foreign.h: Update prototypes of internal functions.
  Shouldn't affect ABI as they are internal.

* doc/ref/api-foreign.texi (Void Pointers and Byte Access): Update
  docs.
This commit is contained in:
Andy Wingo 2011-04-01 13:31:26 +02:00
parent 13a78b0fd7
commit c6b08d2194
4 changed files with 90 additions and 26 deletions
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4
libguile/foreign.h
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@ -72,8 +72,8 @@ SCM_INTERNAL void scm_i_pointer_print (SCM pointer, SCM port,
scm_print_state *pstate);
SCM_INTERNAL SCM scm_dereference_pointer (SCM pointer);
SCM_INTERNAL SCM scm_string_to_pointer (SCM string);
SCM_INTERNAL SCM scm_pointer_to_string (SCM pointer);
SCM_INTERNAL SCM scm_string_to_pointer (SCM string, SCM encoding);
SCM_INTERNAL SCM scm_pointer_to_string (SCM pointer, SCM length, SCM encoding);