Programming :: Convert String To Integer Back To String C++ ?
Mar 13, 2010
Code:
The error is:
Code:
What I want to do is take input of ip4 as a string, convert it to an integer to add 1 to it, then reconvert it back to a string. Its not working.
My full code is:
Code:
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Mar 26, 2011
Do I have the convert the int to a string using stringstream then convert the string to a char? or is there a more direct way?Also is there a way to tell the length of a int?
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Sep 19, 2010
If I have a variable, say xvar, which can take both string and integer value and I want to perform an operation in following 2 conditions:1. Either xvar is null2. xvar equals 2[ -z "$xvar" ] || [ $xvar -eq 2 ] && <some-code>Doesn't seem to work if xvar takes string valuesI know that since I have no restriction on xvar, I can get away with string comparison in second test too, ie[ -z "$xvar" ] || [ "$xvar" = "2" ] && <some-code>
But, 'Sams teach yourself shell script in 24 hrs' says that [ expr1 -eq expr2 ], if either is string, it assumes 0 valueIs it true
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Oct 18, 2010
I have a function that take char* I call this function in an array, and I need to pass the following:-i+" binomial" to be like "2 binomial" or whatever value of i value (i is an integer) it is pretty easy to be done in java, but how to concatenate an integer with a string and get char* or string to pass to a new function.If you missed me i just need to get the following :string =integer + string
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Oct 22, 2010
copy string a to string b and change string b with toupper() and count the chars
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Jul 6, 2010
Iam trying to check a value less than or equals 0.The value iam getting is after doing grep a file . but its throwing error .
Code:
When i execute this it throws
Code:
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May 3, 2011
I've been trying to understand pthread in C a little better. So I made a simple program that takes in a string from the command line and creates a thread to print the string. I've looked online and copied the basic concepts but there are something things I'm confused about. The programs works just fine, but I have questions. Here's what I have so far.
[Code]....
One thing I'd like to know is why the 3rd argument in the pthread_create function which is my SendMessage function needs to be typecasted to a void pointer and then send the address of the function. Also as for the 4th argument, I would see typecasting to void pointer in some of the pthread examples I saw online, but in my case I'm passing a char pointer, would this be correct? In which case would I ever want to pass a void pointer?
Do I need a pthread_exit(NULL) in my main and in the SendMessage function? If so, why? I added the sleep() function so that I could let the pthread_exit function in my SendMessage function execute first. I simply saw that the online examples on pthread had pthread_exit() in both locations.
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May 9, 2010
I've searched around and can't find out how to convert a string ( like "12345" ) into an int array ( x[ 5 ] = { 1, 2, 3, 4, 5 } ; ).
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Jul 2, 2010
convert string to long ?
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Apr 5, 2010
Someone know how i can convert from hex string to double in c/c++?? Example 40668472B020C49C is 180.139
reference page: http://babbage.cs.qc.edu/IEEE-754/64bit.html
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Aug 18, 2010
i have problem in java. how to convert string array to character. e.g string a[]={"ab","abc","abd","ag"}; what will be the character array ?
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Dec 15, 2010
I'm trying to convert an 8 digit string into a long. The code compiles, but I'm getting only 1 digit placed into the long.
[Code]....
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Jun 9, 2010
Like the binary form of the integer '2' is '10',
How should I find out the binary form of a string say "abcd" ?
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Oct 16, 2010
I have a set of lines as ahown below:
Leon went to school
Leon came back from school..
Leon had dinner...
I have to replace the line containing "dinner" by a single string LUNCH...
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Feb 25, 2011
I need to creates string suffixes out of a Reference string. for eg. suffixes of abcdefg will be
1)bcdefg
2)cdefg
3)defg
and so on...
create an array of pointers to point to the first few characters and then use that pointer to print the rest of the string.But when i print using the pointer i get GARBAGE values! shudn't std::cout<<ptr[w] print the string following the char it is pointing to? why do i get garbage values?
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Apr 18, 2010
So if I'm given a location of a file like:
How can I just take the type of the file at the end? I know I can use strrchr() for a period to get the pointer to the period just before file type. Is there a build in string function that will just take the rest of the string from a certain point on forward in the string? I know it wouldn't be much work to make it myself, but I figured I would find out if it already existed before doing it.
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Dec 2, 2010
I need to part a string into separate integers ....like "0x0-0xffffffff,0x20000" into 3 integers 0x0 and 0xfffffff and 0x20000.... i can't use any other high-level languages ..
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Mar 17, 2011
how to convert a dictionary data-type to a string?
actually I am trying to update some json file 's dictionary.
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Oct 12, 2009
I've been given a custom-made string class which handles string, wstring and bstr. It has a number of methods and assignment operators to convert to and from different types. The app I work on compiles happily in VS6 and VS2008, but when trying to compile in Redhat (version 4.1.1 in Redhat 5.0)
[code]....
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Nov 11, 2010
I have the following two type of strings1: A/D2: A/C/DI am trying to write a subroutine to check whether all of the letters in string 1 appears in string 2. If yes, return true. If not, return false. In the above example, all the letters (A and D) in string 1 are also present in string 2, so I return true.
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Sep 2, 2010
I have a line in a text file that has 40 random characters within a tag and i want to change the characters to a new set of 40 random characters (alphanumeric a-z 0-9 etc)
The line in the text file looks like this:
Quote:
How would i go about doing that?
Also second question same as the above but how would i remove them instead of replacing them?
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Apr 26, 2011
If I have a word in a text file and I need to replace it by another word (for example, i need to replace abc by fff) so what is the command I can type it?
I am using vi editor.
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Mar 7, 2011
I have a String that I would like to sign using a given RSA Private key. I thought this would be relatively easy but I have not been able to find out how to do it, unless I'm looking to far into a simple problem. Do i have to put the string into a file, and sign the file, or can i just sign the string/message?
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Apr 2, 2011
I want to replace a string of directory path in a string to empty:
Code:
But this doesnt seem to give me the desired thing:
Code:
This gives the desired outcome, but its specific, i need a variable in the sed not a string. And if I replace STRING="/mnt/sda1/record/$dd/" then I cant use it for something else, cause its has all the weird backslashes now.
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Oct 26, 2010
I need to convert an integer to a byte array of size 2 and vice versa. The code shown below works well for positive values but not for negative values. Also, using an array of size four makes the conversion works. However, I am limited to an array of size 2.
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Nov 15, 2010
How do i convert variable to string?
For example:
So how do i make the code with variable work?
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Jun 8, 2010
I want to convert strings like 002, 049, 050, 100 to numbers: 2, 49, 50, 100.
I tried to use:
Code:
`printf "%5d" $i`
, but it doesnt work , it convert:
002=>2
014=>12
049=>0
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Nov 4, 2010
i have a file name using the following pattern:
PREFIX: AR
SOURCE: LEGACY
DATETIME: YYYYMMDD_HH24MISS
SUFFIX: .txt
sample filename:AR_LEGACY_20101104_105500.txti want to extract the source which is LEGACY in this case. how do i do this using shell?
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Jun 9, 2010
I used xbindkeys and xvkbd to map my extra mouse buttons to page up and page down. With kde 4.4 it worked, but since I upgraded to kde 4.5 beta, I get the following error when xbindkeys starts:
Code:
*** Warning ***verify that there is not another program running which captures one of the keys captured by xbindkeys. It seems that there is a conflict, and xbindkeys can't grab all the keys defined in its configuration file. And for button press I get
Code:
Warning: Cannot convert string "-*-lucidatypewriter-bold-r-*-*-12-*-*-*-*-*-iso8859-1" to type FontStruct
Warning: Cannot convert string "-*-helvetica-bold-r-*-*-12-*-*-*-*-*-iso8859-1" to type FontStruct
[code]....
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Jan 21, 2010
I'm having some trouble with some adobe fonts (at least I think that's it). Anyways the errors received are
Code:
Warning: Cannot convert string "-adobe-courier-medium-r-*--14-*-*-*-m-*-*-*" to type FontStruct
Warning: Cannot convert string "-adobe-courier-bold-r-*--14-*-*-*-m-*-*-*" to type FontStruct
Warning: Cannot convert string "-adobe-courier-medium-r-*--12-*-*-*-m-*-*-*" to type FontStruct
X Error of failed request: BadName (named color or font does not exist) Major opcode of failed request: 45 (X_OpenFont) Serial number of failed request: 643 Current serial number in output stream: 654 xlsfonts|grep adobe|grep courier
[Code]...
I went looking for those files to see if I could symlink a 14 one to either the 15 one or the other ones, but I couldn't find the files anyways. I get this when attempting to run an X windowed program (qmon) and it crashes out while printing the first set of errors.
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