John William John William - 1 month ago 24
C++ Question

c++ input hexadecimal without 0x

I'm making a project that dumps a file by putting the offsets (hexadecimal). I must put the hexadecimal with 0x like 0xBEE4DC because the application will crash or return an error if I put a hexadecimal without 0x like BEE4DC. Is there a way to put the hexadecimal without "0x" ?

This is my code. i'm keeping this project secret so I don't show more code than this.

dump1.cpp

void LoadMetadata(char* szFile)
{
string mystr;
int offset2;
int offset1;
std::cout << "Input unknown offset #1: ";
getline(cin, mystr);
stringstream(mystr) >> offset1;
std::cout << "Input unknown offset #2: ";
getline(cin, mystr);
stringstream(mystr) >> offset2;
std::cout << "\n";

...

}


dump2.cpp

static int offset2;
static int offset1;

void LoadDumpLib(char* szFile)
{

...
pCodeRegistration = (DumpCodeRegistration*)MapVATR(offset2, pLibIl2Cpp);
pMetadataRegistration = (DumpMetadataRegistration*)MapVATR(offset1, pLibIl2Cpp);

...
}

Answer

This code should work

std::cout << "Input unknown offset #1: ";
getline(cin, mystr);
stringstream(mystr) >> hex >> offset1;
std::cout << "Input unknown offset #2: ";
getline(cin, mystr);
stringstream(mystr) >> hex >> offset2;
std::cout << "\n";
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