From string to long..number in string is hex uho
Author
atof(...) will not return what the number is in hex. Are there any other function in the C Runtime Library that can do this only for hex? If I have to write my own function to do this I will, but I was hoping I wouldnt have to. lol :)
example of string: 1A
ouput: 1 ?? I guess it just leaves out non-numeric characters
should output: 26
so far I know there is no standar function to convert a string representation of an hex number into an integer value.
Why do you end up having a hex in a string? are you reading from a textfile?
Why do you end up having a hex in a string? are you reading from a textfile?
Author
It is a Intel Hex file...I am downloading the EEPROM from a microcontroller and I trying to read/edit the values. It is just a ASCII text file. Are there any 3rd party math libs out there that can do this?
:10000000025E1A1E102700008E4100000B01FFFF48
:10000000025E1A1E102700008E4100000B01FFFF48
Quote:Original post by starboarder
:10000000025E1A1E102700008E4100000B01FFFF48
I'm not sure that number will fit into a long... if that's a whole number.
Author
nahh..that is the whole EEPROM.
The first byte:02 is the version of my firmware.
The next word:5E1A is the dwell setting.
etc
The first byte:02 is the version of my firmware.
The next word:5E1A is the dwell setting.
etc
strtol in <stdlib.h> taks the base of the number as a parameter. so just pass it 16 and it should parse your number correctly.
Quote:Original post by starboarder
It is a Intel Hex file...I am downloading the EEPROM from a microcontroller and I trying to read/edit the values. It is just a ASCII text file. Are there any 3rd party math libs out there that can do this?
:10000000025E1A1E102700008E4100000B01FFFF48
Tried strtol? It's part of ANSI-C stdlib.
Should work for your case. (You want base 16, or base 0 with "0x" before the number to convert.)
Author
nope...I have never used strtol(...) before. Thanks allot I got it working now! :)
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