String Dev C++ Example

I am trying to learn C++ and am trying to figure out how to use strings and if statements together. Here's the code I'm trying to play around with:

  1. String Dev C Example For Kids
  2. C++ String Class Example

Every time I type in no, the statement 'You open the door' pops up. Anybody know what I'm doing wrong?

Thanks

C++ string exampleString
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  • commentLatest Postby sftrannaLatest Post

Dev c examples free download. Qmmp This program is an audio-player, written with the help of the Qt library. The user interface is simi dev c examples free download - SourceForge. Hi, i am trying to convert a simple integer or byte or anything else to a string in order to write to a file on disk. It does not work the way i did it for years with e.g. Microsoft C7.0 (Win3.1) and Visual C 6.0 (W32) - dont know why. C Strings Original handout written by Neal Kanodia and Steve Jacobson. C Strings One of the most useful data types supplied in the C libraries is the string. A string is a variable that stores a sequence of letters or other characters, such as 'Hello' or 'May 10th is my birthday!' Just like the other data types, to create a string we.

String array in c++ example

mike_2000_172,669

First of all, for any type (string or other), the statement 'if ( a = b )' does not check whether a is equal to b, it assigns the value of b to a, and returns the final value a (which is also the value of b). The single = sign is an assignment operator, not a comparison operator. The comparison for equality is , i.e. double equal sign.

Second, the strings that you are using are so-called C-strings (kept for legacy support of C code in C++). The proper string to use is the class 'std::string' (in the '#include <string>' header. Using these, your code will work (with the double equal sign instead of single equal sign for comparisons).

Third, if you have to use 'char *', i.e. C-strings, then there is no equality operator for it, so 'a 'yes' will not work. The proper function to compare two C-strings is strcmp(), which will return 0 if they are equal. Thus:

String Dev C Example For Kids

Finally, and most importantly, having 'char* a;' does not initialize 'a'. 'a' is a pointer to an array of characters (char). By not initializing it, you have a pointer that points nowhere (well it points somewhere, but not somewhere that it should point to, because the memory at that address will be used for something else and using 'a' uninitialized will corrupt your program). So, you need to initialize it by giving some space for it. Since you are beginning to learn, I'm not sure how much I should or could explain, so I will just say that you should replace line 5 by this:

C++ String Class Example

But, frankly, using std::string is highly recommended here.