I have a COW database that uses mmap and the String type seems to either allocate or move when I would like to just have a const pointer/len to memory itself. Is there anything in NTL that can do this?

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I have a COW database that uses mmap and the String type seems to either allocate or move when I would like to just have a const pointer/len to memory itself. Is there anything in NTL that can do this?

How about Upp::MemReadStream? If I understand you correctly, this seems to be what you need.

Best regards,

Oblivion

#include <Core/Core.h>

using namespace Upp;

CONSOLE_APP_MAIN {
    const char *test = "this is a test";
    MemReadStream ms(test, strlen(test));
    
    String test2;
    ms % test2;
    
    Cout() << test2;
}

Do you really need intermeadiary level?

    const char *test = "this is a test \n";
    MemReadStream ms(test, strlen(test));
    Cout().Put(ms); //cheap... 

(De)serialization, which eventually involves copying if you're going to put the data into new String, can be done via Stream helpers.(Eg LoadStream, SaveStream et al.)

Best regards,
Oblivion

Do you really need intermeadiary level?