inbuild function for hexa to decimal convertion?
-
Hi guys can any one tell me whether there is an inbuild function that converts hexa value to decimal. I have used
sscanf(charVar,"%X",intVar)when I do this the output is same as that of input (i.e., same hexa value). can any one help? Regards,:)lgatcodeproject
-
Hi guys can any one tell me whether there is an inbuild function that converts hexa value to decimal. I have used
sscanf(charVar,"%X",intVar)when I do this the output is same as that of input (i.e., same hexa value). can any one help? Regards,:)lgatcodeproject
lgatcodeproject wrote:
converts hexa value to decimal.
:confused: That doesn't really make sense to me. A value is a value, it's only a representation of that value that can be decimal or hexadecimal. In your sample, you have a string that contains a hexadecimal representation of a number and you store that value in the intVar. But at this time, it is a value, and not a representation anymore. There is no output possible of your intVar (if you look at it from your debugger, the debugger will show you a representation of the number, which you can change without affecting the value). I would have guessed that you want to convert a string that contains a hexa representation to a string that contains a decimal representation but your code snippet contradicts that. So, what are you trying to do exactly ?
Cédric Moonen Software developer
Charting control [v1.2] -
Hi guys can any one tell me whether there is an inbuild function that converts hexa value to decimal. I have used
sscanf(charVar,"%X",intVar)when I do this the output is same as that of input (i.e., same hexa value). can any one help? Regards,:)lgatcodeproject
If intVar is an int, then it's not decimal, binary, hexadecimal. You can display intVar in your debugger in hex if you show intVar,x or decimal using intVar Try right clicking on the watch window and de-select the "show hex" option. Beyond that, I don't understand your problem. Iain.
Iain Clarke appearing in spite of being begged not to by CPallini.
-
Hi guys can any one tell me whether there is an inbuild function that converts hexa value to decimal. I have used
sscanf(charVar,"%X",intVar)when I do this the output is same as that of input (i.e., same hexa value). can any one help? Regards,:)lgatcodeproject
you have to pass the address of the
intvariable tosscanf, for instance:int i;
sscanf("1F","%X", &i);sets
i=31;. :)If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke -
lgatcodeproject wrote:
converts hexa value to decimal.
:confused: That doesn't really make sense to me. A value is a value, it's only a representation of that value that can be decimal or hexadecimal. In your sample, you have a string that contains a hexadecimal representation of a number and you store that value in the intVar. But at this time, it is a value, and not a representation anymore. There is no output possible of your intVar (if you look at it from your debugger, the debugger will show you a representation of the number, which you can change without affecting the value). I would have guessed that you want to convert a string that contains a hexa representation to a string that contains a decimal representation but your code snippet contradicts that. So, what are you trying to do exactly ?
Cédric Moonen Software developer
Charting control [v1.2]Hello, Consider this situation, I need to iterate 'iLength' number of values for a business logic. 'iLength' is a value represented in hexa. In a while loop, to perform a boundary check I am using this 'iLength' value.
while(++iPosition<= iLength)My assumption is that this boudary check requires the value to be an integer is not so? If not clarify? Assuming my assumption is true how do I represent a hexa value in decimal? eg. if 'iLength' = 2b, I need 'iLength' to contain 43? How ? Kindly clarify. Thanks for your quick response. Regards, :)lgatcodeproject
-
Hello, Consider this situation, I need to iterate 'iLength' number of values for a business logic. 'iLength' is a value represented in hexa. In a while loop, to perform a boundary check I am using this 'iLength' value.
while(++iPosition<= iLength)My assumption is that this boudary check requires the value to be an integer is not so? If not clarify? Assuming my assumption is true how do I represent a hexa value in decimal? eg. if 'iLength' = 2b, I need 'iLength' to contain 43? How ? Kindly clarify. Thanks for your quick response. Regards, :)lgatcodeproject
lgatcodeproject wrote:
eg. if 'iLength' = 2b, I need 'iLength' to contain 43? How ?
You have to do nothing, supposing
iLengthis declared as an integer variable. :)If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke -
Hello, Consider this situation, I need to iterate 'iLength' number of values for a business logic. 'iLength' is a value represented in hexa. In a while loop, to perform a boundary check I am using this 'iLength' value.
while(++iPosition<= iLength)My assumption is that this boudary check requires the value to be an integer is not so? If not clarify? Assuming my assumption is true how do I represent a hexa value in decimal? eg. if 'iLength' = 2b, I need 'iLength' to contain 43? How ? Kindly clarify. Thanks for your quick response. Regards, :)lgatcodeproject
If iLength is an integer (which I suppose), it IS a number. iLenght contains your value and it has nothing to do with "2b" or "43" because these are only representations of your number. You have to make the difference between the value itself (which not hexa, decimal or whatever, it is just a value) and how you want to represent it (which is only used if you want to print the value in a string). Do you understand the difference ?
lgatcodeproject wrote:
'iLength' is a value represented in hexa
That doesn't make sense: iLenght is an integer and that's it. An integer is never represented. If you look at it from your debugger, that's because your debugger is configured to display a representation of it in hexa, but you can change the representation to decimal without affecting the value at all.
Cédric Moonen Software developer
Charting control [v1.2] -
If iLength is an integer (which I suppose), it IS a number. iLenght contains your value and it has nothing to do with "2b" or "43" because these are only representations of your number. You have to make the difference between the value itself (which not hexa, decimal or whatever, it is just a value) and how you want to represent it (which is only used if you want to print the value in a string). Do you understand the difference ?
lgatcodeproject wrote:
'iLength' is a value represented in hexa
That doesn't make sense: iLenght is an integer and that's it. An integer is never represented. If you look at it from your debugger, that's because your debugger is configured to display a representation of it in hexa, but you can change the representation to decimal without affecting the value at all.
Cédric Moonen Software developer
Charting control [v1.2]Hi, I understand the difference between a value and its representation. I need clarification on this, "a value means the same in what ever way it is represented am I right? then what is the real need to represent an value in different ways?" :) Regards,
lgatcodeproject
-
Hi, I understand the difference between a value and its representation. I need clarification on this, "a value means the same in what ever way it is represented am I right? then what is the real need to represent an value in different ways?" :) Regards,
lgatcodeproject
Because a representation maybe convenient in a particular context. For instance, hexadecimal one uses exactly two digits to represent all of the values of byte (to display
bytevalues with decimal representation you may need three digits, but a large part of decimal three-digits-numbers cannot fit in abyte); binary representation maybe opportune whenever you need to display a bit mask, and so on.. :)If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
