Return an empty C-String

Posted by Evorlor on Stack Overflow See other posts from Stack Overflow or by Evorlor
Published on 2013-10-19T03:15:32Z Indexed on 2013/10/19 3:54 UTC
Read the original article Hit count: 84

Filed under:

c++

|

return

|

cstring

|

c-strings

Simple Question:

How do you return an empty C-String with as little code as possible?

I have code that needs to return an empty char*. I am looking for something along the lines of return "";. I know there are several ways to do this, but I am looking for the most efficient way possible.

Using return ""; gives warning: conversion from string literal to 'char *' is deprecated [-Wdeprecated-writable-strings]

Thanks!

© Stack Overflow or respective owner

Related posts about c++

Which C++ book shold I get between "C++ Primer" vs "C++ Primer Plus"

as seen on Stack Overflow - Search for 'Stack Overflow'
I want to learn C++ by using Vim and MinGW as compiler. I'm interesting at "C++ Primer (4th Edition)" and "C++ Primer Plus (5th Edition)" but I don't know how about it different. It has no book store that I can review those books, so I want to know, what is the different between those book and which… >>> More
C++ : C++ Primer (Stanley Lipmann) or The C++ programming language (special edition)

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a Computer Science degree (long2 time ago) .. I do know Java OOP but i am now trying to pick up C++. I do have C and of course data structure using C or pascal. I have started reading Bjarne Stroustrup book (The C++ Programming Language - Special Edition) but find it extremely difficult esp… >>> More
I need help on my C++ assignment using MS Visual C++

as seen on Stack Overflow - Search for 'Stack Overflow'
Ok, so I don't want you to do my homework for me, but I'm a little lost with this final assignment and need all the help I can get. Learning about programming is tough enough, but doing it online is next to impossible for me... Now, to get to the program, I am going to paste what I have so far. This… >>> More
Managed c++ std::string not accessible in unmanaged c++

as seen on Stack Overflow - Search for 'Stack Overflow'
In unmanaged c++ dll i have a function which takes constant std::string as argument Prototype : void read ( const std::string &imageSpec_ ) I call this function from managed c++ dll by passing a std::string. When i debug the unmanaged c++ code the parameter imageSpec_ shows the value correctly… >>> More
The Definitive C++ Book Guide and List

as seen on Stack Overflow - Search for 'Stack Overflow'
After more than a few questions about deciding on C++ books I thought we could make a better community wiki version. Providing QUALITY books and an approximate skill level. Maybe we can add a short blurb/description about each book that you have personally read / benefited from. Feel free to debate… >>> More

Related posts about return

eventmachine on debian fails install via rubygems

as seen on Stack Overflow - Search for 'Stack Overflow'
this has been killing me for the last 5 hours. I don't seem to be able to get eventmachine running on my debian box. here this output: $ gem install thin Building native extensions. This could take a while... ERROR: Error installing thin: ERROR: Failed to build gem native extension. … >>> More
" not all code paths return a value" when return enum type

as seen on Stack Overflow - Search for 'Stack Overflow'
I have enum list and method and i get error: " not all code paths return a value" Some idea whats wrong in my method ? I am sure I always return STANY type :/ Thanks for help :) private enum STANY { PATROL, CHAT, EAT, SEARCH, DIE }; private STANY giveState(int id, List<Ludek> gracze… >>> More
Should my WCF webservice return a 500 or 200 http code (soap fault / functional return message)

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi all, after reading the SOAP specs, it states that a SOAP Fault should return a http 500 errorcode, so when a SoapException is thrown, WCF returns a 500 error code. Now, I'm looking for some best practices to when return a functional soap error message and when to return a SOAP Fault. What would… >>> More
What's the difference between "return View()" and "return PartialView()"

as seen on Stack Overflow - Search for 'Stack Overflow'
I understand that partial views are used to render parts of a view. But I can't understand what's the difference between return View() and return PartialView() and when do you use each one. >>> More
C++ auto function return type implementation [trailing-return-type]

as seen on Stack Overflow - Search for 'Stack Overflow'
hello. Is there macro, something like BOOST_AUTO, which would allow to emulate automatic return type deduction of function in C++? I mean something like trailing-return-type, http://en.wikipedia.org/wiki/C%2B%2B0x#Alternative_function_syntax thank you >>> More