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Re: proposal: scm_string2str() and scm_symbol2str()
From: |
stefan |
Subject: |
Re: proposal: scm_string2str() and scm_symbol2str() |
Date: |
Fri, 16 Nov 2001 00:06:56 +0100 (CET) |
On Wed, 14 Nov 2001, Thien-Thi Nguyen wrote:
> i've just checked in devel/policy/api.text, which generalizes your
> question somewhat, therein (this is how to do it correctly :-). before
> answering the questions, i'd like to request a list of such kinds of
> functions -- feel free to add the list to api.text directly.
If noone objects I would like to put the following piece into the
"Decisions" section:
* To have sane memory allocation interface between C and libguile
put scm_c_free(), scm_c_malloc() and scm_c_realloc() into `gc.[ch]'.
* Convert and implement these gh_*() functionality:
gh_scm2newstr() ->
char *scm_c_string2str (SCM obj, char *str, size_t *lenp)
gh_scm2newsymbol() ->
char *scm_c_symbol2str (SCM obj, char *str, size_t *lenp)
gh_get_substr() ->
char *scm_c_string2substr (SCM obj, char *str, size_t start, size_t len)
gh_scm2chars() ->
char *scm_c_scm2chars (SCM obj, char *dst)
gh_scm2shorts() ->
short *scm_2_scm2shorts (SCM obj, short *dst)
gh_scm2longs() ->
long *scm_c_scm2longs (SCM obj, long *dst)
gh_scm2floats() ->
float *scm_c_scm2floats (SCM obj, float *dst)
gh_scm2doubles() ->
double *scm_c_scm2doubles (SCM obj, double *dst)
Each of these can receive a "destination pointer" and returns it. If
this pointer is NULL, the user needs to scm_c_free() the return value
because it got allocated by scm_c_malloc().
Cheers,
address@hidden
- proposal: scm_string2str() and scm_symbol2str(), stefan, 2001/11/12
- Re: proposal: scm_string2str() and scm_symbol2str(), Thien-Thi Nguyen, 2001/11/12
- Re: proposal: scm_string2str() and scm_symbol2str(), Dirk Herrmann, 2001/11/19
- Re: proposal: scm_string2str() and scm_symbol2str(), stefan, 2001/11/19
- Re: proposal: scm_string2str() and scm_symbol2str(), Dirk Herrmann, 2001/11/19
- Re: proposal: scm_string2str() and scm_symbol2str(), stefan, 2001/11/19
- Re: proposal: scm_string2str() and scm_symbol2str(), Dirk Herrmann, 2001/11/21
- Re: proposal: scm_string2str() and scm_symbol2str(), stefan, 2001/11/21
- Re: proposal: scm_string2str() and scm_symbol2str(), Dirk Herrmann, 2001/11/21
- Re: proposal: scm_string2str() and scm_symbol2str(), stefan, 2001/11/22