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• Formatting an integer in C++

  - by Phenom

  I have an 8 digit integer which I would like to print formatted like this: XXX-XX-XXX I would like to use a function that takes an int and returns a string. What's a good way to do this?

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• C++ Template const char array to int

  - by Levi Schuck

  So, I'm wishing to be able to have a static const compile time struct that holds some value based on a string by using templates. I only desire up to four characters. I know that the type of 'abcd' is int, and so is 'ab','abc', and although 'a' is of type char, it works out for a template<int v> struct What I wish to do is take sizes of 2,3,4,5 of some const char, "abcd" and have the same functionality as if they used 'abcd'. Note that I do not mean 1,2,3, or 4 because I expect the null terminator. cout << typeid("abcd").name() << endl; tells me that the type for this hard coded string is char const [5], which includes the null terminator on the end. I understand that I will need to twiddle the values as characters, so they are represented as an integer. I cannot use constexpr since VS10 does not support it (VS11 doesn't either..) So, for example with somewhere this template defined, and later the last line template <int v> struct something { static const int value = v; }; //Eventually in some method cout << typeid(something<'abcd'>::value).name() << endl; works just fine. I've tried template<char v[5]> struct something2 { static const int value = v[0]; } template<char const v[5]> struct something2 { static const int value = v[0]; } template<const char v[5]> struct something2 { static const int value = v[0]; } All of them build individually, though when I throw in my test, cout << typeid(something2<"abcd">::value).name() << endl; I get 'something2' : invalid expression as a template argument for 'v' 'something2' : use of class template requires template argument list Is this not feasible or am I misunderstanding something?

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• How do I increment a variable to the next or previous letter in the alphabet in Java?

  - by raleighJ

  I'm relatively new to Java coding, and was looking for some help. I have a capital letter defined in a variable string, and I want to output the next and previous letters in the alphabet. For example, if the variable was equal to C, I would want to output B and D. Thanks in advance for any help.

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• something like a python's triple-quote in F# (or C#)?

  - by tk

  I want to assign a xml code into a string variable. I can do this without escaping single or double-quotes by using triple-quote in python. Is there a similar way to do this in F# or C#?

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• Add characters (',') every time a certain character ( , )is encountered ? Python 2.7.3

  - by draconisthe0ry

  Let's say you had a string test = 'wow, hello, how, are, you, doing' and you wanted full_list = ['wow','hello','how','are','you','doing'] i know you would start out with an empty list: empty_list = [] and would create a for loop to append the items into a list i'm just confused on how to go about this, I was trying something along the lines of: for i in test: if i == ',': then I get stuck . . .

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• How will you sort strings in the following example ?

  - by Phoenix

  so i have a list of string {test,testertest,testing,tester,testingtest} I want to sort it in descending order .. how do u sort strings in general ? Is it based on the length or is it character by character ?? how would it be in the example above ?? I want to sort them in a descending way.

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• How to redirect the output of a system call to inside the program in C/C++?

  - by debugger

  Hi All, I'm writing a program in C++ which do some special treatment for all the files in the current directory on Linux OS. So i was thinking of using system calls such as system("ls") to get the list of all files. but how to store it then inside my program ? ( how to redirect the output of ls to let's say a string that i declared in the program ) Thanks

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• Removing text in all kinds of braces

  - by Andrew White

  Hi, I have a string "hello [world] this {is} a (test)" I want to remove all text in braces, e.g. returning "hello this a". But only if the braces match. Anyone have a nice neat solution?

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• What's the most efficient way to pull 'en-US' out of 'form1.en-US.resx' using C#?

  - by Lee Warner

  What's the most efficient way to pull 'en-US' out of 'form1.en-US.resx' using C#? The solution should also handle there not being culture info in the file name (ie form1.resx). In that case a string assigned "Default" should be returned.

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• Can IDL evaluate strings as code?

  - by Carthage

  Is there any functionality in IDL that will allow it to evaluate a a string as code? Or, failing that, is there a nice, dynamic way of including /KEYWORD in functions? For example, if I wanted to ask them for what type of map projection the user wants, is there a way to do it nicely, without large if/case statements for the /Projection_Type keyword it needs? With even a small number of user options, the combinations would cause if/case statements to get out of hand very quickly to handle all the possible options.

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• C++: Chr() and unichr() equivalent?

  - by alex

  I could have sworn I used a chr() function 40 minutes ago but can't find the file. I know it can go up to 256 so I use this: std::string chars = ""; chars += (char) 42; //etc So that's alright, but I really want to access unicode characters. Can I do (w_char) 512? Or maybe something just like the unichr() function in python, I just can't find a way to access any of those characters.

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• How can I format strings for use as structure field names in MATLAB?

  - by Elpezmuerto

  I want to remove hyphens (-), slashes (/) and white space () from a string name(i) so that I can use it as a structure field name. This is the ugly way I am currently doing it using the function strrep: cell2mat(strrep(strrep(strrep(name(i), '-',''),'/',''),' ', '')) I have also tried other variations, such as: strrep(name(i),{'-','/'},{'',''}); strrep(name(i),['-','/'],['','']); What is a more efficient way of doing this?

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• C++ printf: newline (\n) from commandline argument

  - by Sebtm

  How print format string passed as argument ? example.cpp: #include <iostream> int main(int ac, char* av[]) { printf(av[1],"anything"); return 0; } try: example.exe "print this\non newline" output is: print this\non newline instead I want: print this on newline

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• Perl, search array

  - by Mike

  What is the smartest way of searching through an array of strings for a matching string in Perl? One caveat, I would like the search to be case-insensitive so "aAa" would be in ("aaa","bbb")

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• Object allocation in C++

  - by Poiuyt

  char *myfunc() { char *temp = "string"; return temp; } In this piece of code, where does the allocation of the object pointed to by temp happen and what would be its scope? Is this function a valid way to return a char* pointer?

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• Read multiple lines from InputStreamReader (JAVA)

  - by eriks

  I have an InputStreamReader object. I want to read multiple lines into a buffer/array using one function call (without crating a mass of string objects). Is there a simple way to do so?

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• Painless way to trim leading/trailing whitespace in C?

  - by coledot

  Is there a clean, preferably standard method of trimming leading and trailing whitespace from a string in C? I'd roll my own, but I would think this is a common problem with an equally common solution.

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• Scoping a StringBuilder inside a for loop

  - by syker

  When would you ever want to scope a String Builder inside a for loop? Sample Code: .... for (int i=0; i<cnt; i++) { .... { StringBuilder sb = new StringBuilder(); sb.append(","); .... } } ....

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• How to read file.xml from resources to NSString with format?

  - by falkon

  Actually I have such a code: NSString *path = [[NSBundle mainBundle] pathForResource: @"connect" ofType: @"xml"]; NSError *error = nil; NSString *data = [NSString stringWithContentsOfFile: path encoding: NSUTF8StringEncoding error: &error]; NSString *message = [NSString stringWithFormat:data, KEY, COUNTRY_ID]; which reads the connect.xml from resources. But on the formating the string (message) APP quits without displaying any errors. How can I read file.xml from resources to NSString with format?

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• Trouble with wstringstream

  - by Rosarch

  I have a wstringstream: wstringstream sstream; AlterSstream(sstream); sstream << "foo"; MessageBoxW( NULL, sstream.str().c_str(), L"subject", MB_OK ); This outputs a long string that looks nothing like what I put in it in AlterSstream(): 00000000002CEC58foo AlterSstream: void AlterSstream(wstringstream& outStream) { outStream << "odp"; } Why is this happening?

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• Why won't this piece of my code write to file

  - by user2934783

  I am developing a c++ banking system. I am able to get the float, newbal, values correctly and when I try to write to file, there is no data in the file. else { file>>firstname>>lastname; cout<<endl<<firstname<<" "<<lastname<<endl; cout<<"-----------------------------------\n"; string line; while (getline(file, line)) { //stringstream the getline for line string in file istringstream iss(line); if (iss >> date >> amount) { cout<<date<<"\t\t$"<<showpoint<<fixed<<setprecision(2)<<amount<<endl; famount+=amount; } } cout<<"Your balance is $"<<famount<<endl; cout<<"How much would you like to deposit today: $"; cin>>amountinput; float newbal=0; newbal=(famount+=amountinput); cout<<"\nYour new balance is: $"<<newbal<<".\n"; file<<date<<"\t\t"<<newbal; //***This should be writing to file but it doesn't. file.close(); The text file looks like this: Tony Gaddis 05/24/12 100 05/30/12 300 07/01/12 -300 //Console Output looks like this Tony Gaddis 05/24/12 100 05/30/12 300 07/01/12 -300 Your balance is: #1 How much wuld you like to deposit: #2 Your new balance is: #1 + #2 write to file close file. //exits to main loop:::: How can I make it write to file and save it, and why is this happening. I tried doing it with ostringstream as well considering how I used istringstream for the input. But it didn't work either :\ float newbal=0; newbal=(famount+=amountinput); ostringstream oss(newbal); oss<<date<<"\t\t"<<newbal; I am trying to self teach c++ so any relevant information would be kindly appreciated.

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• How do I replace multiple spaces with a single space in C#?

  - by Pokus

  How can I replace multiple spaces in a string with only one space in C#? Example "1 2 3 4 5" would be : "1 2 3 4 5"?

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• Why do two array values look the same, but don't evaluate as equal?

  - by kevtrout

  When I compare two array values I see two strings that look the same. php doesn't agree. $array1 = ('address'=>'32 Winthrop Street','state'=>'NY'); $array2 = ('address'=>'32 Winthrop Street'); $results = array_diff_assoc('$array1, $array2); var_dump($results) //echos ['address'] => string(18) "32 Winthrop Street" ['state']=>'NY' Why is this?

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• Replace umlaute (äüö) for SEO link in rails - best way

  - by ole_berlin

  Hi, I'm using the permalink_fu plugin to create permalinks from titles. My problem is: If the title contains german characters, they are just replaced with '_'. What I need is something that replaces ä with ae ü with ue ö with oe I fount String.tr but the problem here is that it replaces 1 character with 1 replacement, so it would work for replacing é with e ø with o etc. Does anyone have a nice and clean solution for that? Thanks

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• Is it possible to slice off the end of a URL with XSLT 1.0?

  - by Eric

  Title says it all really. Using only XSLT 1.0's string functions, how would I go about slicing off the end of a url? So from http://stackoverflow.com/questions/2981175/is-it-possible-to-slice-the-end-of-a-url-with-xslt-1-0 I would like to extract is-it-possible-to-slice-the-end-of-a-url-with-xslt-1-0 Is this possible?

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