Scanning a file in binary mode and interpret the hex characters as actual numbers in C++ -


i know title might sound confusing. have simple question haven't been able solve yet.

lets imagine have file, opening hex editor shows has 2 characters inside, 0x1b , 0x00 (obviously unprintable). i'd take 1b00 in hex, 6912 in dec, opposed directly converting characters wrong , other questions saw asked. well, thats task want here. seems simple, i've tried wrong! though opening file in binary mode.

i have managed read characters individually, , mess around bit, never want, simple taking 2 hex characters, interpreting them hex number, , convert decimal.

sorry unclear idea, im not native speaker. appreciated, im sure you'll think quite noobish question :p

edit: sorry, apparently didn't explain myself properly. know might seem abstract, concrete little thing have struggled solved, yet haven't been able. maybe can ask way:

how can scan character in binary mode, lets 0x1b, , convert actual 1b characters. that.

sounds want read file raw data, , display on screen in decimal? super easy!

int main() {     std::ifstream myfile("filename.data", std::ofstream::binary);     uint16_t number;     char* buffer = (char*)(&number);     while(myfile.read(buffer, sizeof(number))) {         std::cout << number << ' ';     } }

the reason it's easy there's no hexidecimal involved. file saved series of bytes, each byte holds 1 of 256 values. aren't hex, they're series of values. if read 2 bytes uint16_t, easiest way interpret 2 bytes single unsigned 2 byte value. , streaming out uint16_t will, default, display value in decimal. there's no hexidecimal involved. hexidecimal saw in hex editor because hex editor interprets bytes hex values.


Comments

Post a Comment

Popular posts from this blog

How to mention the localhost in android -

i trying call localhost in android application. unfortunately not possible used several methods emulator local host http://10.0.2.2/android/dbconnection.php and network ip address http://192.168.1.xx/android/dbconnection.php also http://localhost:8080/android/dbconnection.php but nothing connected localhost. purpose refer stackoverflow answers not working i facing same problem when worked on localhost. referred stackoverflow answer got solution create new emulator works fine in new emulator.
Read more

php - Calling a template part from a post -

i include iframe within post in wordpress. located inside content of post, meaning cannot in post template file, otherwise either before or after. i'd add facebook plugin within posts: <div id="socialwrap"><div class="fb-like" data-href="http://onlinearizonahomes.info" data-send="true" data-width="450" data-show-faces="true" data-font="arial"></div></div> i thinking of calling template part within post <?php get_template_part( 'social' ); ?> cannot use php within post without plugin (i'd avoid using plugin this). an alternative using javascript create html in post, seems unnecessary use of javascript. what best way add html within wordpress post? you can use shortcode. add functions.php function cudjex_fbshare( $atts, $content = null ) { global $post; $link = get_permalink($post->id); return '<div id="socialwrap...
Read more

c# - String.format() DateTime With Arabic culture -

check below code snippet, namespace testdateconvertion { class program { static void main(string[] args) { datetime testvalue = new datetime(2013, 12, 15, 15, 33, 44); cultureinfo culture = new cultureinfo("ar-sa"); string stringvalue = string.format(culture, "{0:d} {0:hh:mm:ss}", testvalue); console.writeline(stringvalue); console.readline(); } } } it gives output 22/02/35 15:33:44 i not getting how possible. whats 35 doing in output there that's 13/12/2015 in hijri, 35 means 1435 in hijri, default date format saudi arabia.
Read more