Hex to Decimal

[Skute]

Hi,

i have a Hex string which i would like to convert into decimal (non MFC).

char m_cBodyAddress[9] = "80100000";

void* pAddVoid = (void *)&m_cBodyAddress[0];
unsigned char* pAddChar = (unsigned char *)pAddVoid;
unsigned long* pAddLong = (unsigned long *)pAddVoid;

Now, the pointers all point to the same memory (0x0012f8d1). But the values of the long dont match what i have calculated the hex to be.

pAddChar = "80100000" - correct - hex string
pAddLong = 808529976 - incorrect - long version of hex string

The correct output according to my hex calculator should be:
2148532224 (0x80100000)


Can anyone help me out?
Thanks.

 

[Salem]

Casting a pointer to something doesn't perform a convertion on the data type being pointed at

#include <stdlib.h>
long AddLong = atol( m_cBodyAddress );

 

[Skute]

yeah but that will just give me the hex representation. i need to convert that to a decimal.

AddLong = 80100000

i need to have the value "2148532224"

 

[PerFnurt]

Prepend the string with "0x" and use the strtol function.

/Per

_{if (typos) cout << &quot;My fingers are faster than my brain. Sorry for the typos.&quot;;}

 

[Zyrenthian]

strtol takes a base

char* endPtr = NULL;
int value = strtol(cBodyAddress,&endPtr,16);

Matt

 

[Skute]

cheers thanks guys,

got it working now, been using the unsigned long version strtoul()

 

[PerFnurt]

>strtol takes a base

Hmmm, yes....if you wanna do it the EASY way...



/Per

_{if (typos) cout << &quot;My fingers are faster than my brain. Sorry for the typos.&quot;;}