[gnutls-devel] libtasn1 | Make use of const variant of asn1_node (!9)
Development of GNU's TLS library
gnutls-devel at lists.gnutls.org
Wed Jul 10 12:26:42 CEST 2019
Tim Rühsen commented on a discussion on lib/coding.c: https://gitlab.com/gnutls/libtasn1/merge_requests/9#note_190287741
> * length needed.
> -asn1_der_coding (asn1_node element, const char *name, void *ider, int *len,
> +asn1_der_coding (asn1_node_const element, const char *name, void *ider, int *len,
No why ? a const argument is just a promise that the called function doesn't change the memory it points to. Same with char pointers: you can give a 'char *' to a function argument that is 'const char *'. But if you try it the other way round, you'll see a warning (giving a 'const char *' to a 'char *' function argument).
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