As described in perlapi, you can get stash of an SV by SvSTASH, but the following code always crashes! 

use strict;
use warnings;
package dd;
our $dd = "hello world";
main_pp(\$dd);
use Inline Config => BUILD_NOISY => 1,
                CLEAN_AFTER_BUILD => 0;
use Inline 'C' => Config => ccflagsex => '-g';
use Inline 'C' => <<'CODE';
int main_pp(SV* rx){
    SV* x = get_sv("dd::dd", 0);
/* below 2 statement both crash! */
//    printf("stash is %s \n", HvNAME(SvSTASH((SV*)SvRV(rx))));
//    printf("stash is %s \n", HvNAME(SvSTASH(x)));
    printf("pv is %s \n", (SvPVX(x)));
    HV* h = gv_stashpv("dd", 0);
    HE* hash_entry;
    SV* sv_key;
  SV* sv_val;
int num_keys = hv_iterinit(h);
  for (int i = 0; i < num_keys; i++) {
    hash_entry = hv_iternext(h);
    sv_key = hv_iterkeysv(hash_entry);
    sv_val = hv_iterval(h, hash_entry);
    printf("%s => %s\n", SvPV(sv_key, PL_na), SvPV(sv_val, PL_na));
  }
return 0;
}
CODE

[download]
Please help! Thanks in advance!



I am trying to improve my English skills, if you see a mistake please feel free to reply or /msg me a correction

In reply to how to get stash name of SV? by xiaoyafeng

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