Creating a OssBitString from a std::string?

Question

The OssBitString takes in string length (in bits) and a const unsigned char* as parameters. However, when I convert the input std::string to const unsigned char* and pass it to OssBitString, the contents of the string get modified and contains weird characters. The following is the conversion function from std::string to OssBitString:

inline const OssBitString converter(const std::string&s, int size)
{ 
return OssBitString(size, reinterpret_cast<const unsigned char*>(s.c_str()))
}

I am not sure how to proceed. Also,I tried to convert the string into binary format and then convert as a OssBitString as well. But it did not work. How to convert std::string to OssBitString then?

Should not you address this question to OSS Novalka as you seem to use their ASN1/C++ tool ? — YaFred
– YaFred, Commented Jan 15, 2020 at 9:42

Paul Thorpe · Accepted Answer · 2020-01-15 16:35:29Z

0

Since you seem to be asking a question about a particular commercial ASN.1 Tool vendor's product, you should send your question directly to them. To reach OSS Nokalva's technical support, send an email to [email protected] rather than asking your question here.

answered Jan 15, 2020 at 16:35

Paul Thorpe

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Sam Tyler · Accepted Answer · 2020-01-25 22:55:51Z

0

Like such:

std::string my_str;

OssBitString my_bit_str;

my_bit_str.set(my_str.length(), my_str.data());

https://www.oss.com/asn1/products/documentation/asn1_cpp_6.7/asn1cpp-runtime-representation-classes.html#OssBitString_set_length_char

The poor interface of OSS was a good motivator for my to write my own ASN.1 library. In fast_ber any string like type can be assigned to directly. Example of usage in fast_ber:

https://github.com/Samuel-Tyler/fast_ber/blob/master/sample/encode/main.cpp

answered Jan 25, 2020 at 22:55

Sam Tyler

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