c++ - How do I output an unsigned char* to file without reinterpret_cast -

i have unsigned char* filled characters not ascii example: `

¤Ýkgòd–ùë$}ôkÿuãšj@Äö5Õne„_–Ċ畧-ö—rs^hÌvÄ¥u`  .  

if reinterpret_cast, i'll lose characters if i'm not mistaken because they're not ascii. i've searched everywhere solutions require sort of casting or conversion alter data. here's have, doesn't work.

unsigned char* ciphertext = cipher->encrypt(stringtest); string cipherstring(reinterpret_cast<char*>(ciphertext));  //<-- @ point data changes in debugger outputfile.open(outfile);        outputfile.close();              

you're not calling string constructor should calling. instead of 1 takes single char * argument, should call 1 takes 2 arguments - char * , length.

basic_string( const chart* s,               size_type count,               const allocator& alloc = allocator() ); 

to use in example

unsigned char* ciphertext = cipher->encrypt(stringtest); size_t ciphertextlength = // retrieve api allows string cipherstring(reinterpret_cast<char*>(ciphertext), ciphertextlength);  outputfile.open(outfile);        // assuming outputfile ofstream outputfile << cipherstring; outputfile.close();   

note debugger might still indicate truncated string depending on how it's interpreting string's contents. if open output file in editor , inspect bytes should see expected result.

as remylebeau mentions in comments, if don't need std::string other purpose, don't need create it, write ofstream directly.

outputfile.open(outfile);        outputfile.write(reinterpret_cast<char*>(ciphertext), ciphertextlength); outputfile.close();