04.05.2020

String Compare In Dev C++

Conditional breakpoint with string comparison in C not working windows 10.0 visual studio 2017 version 15.5 debugger C Maik Riechert MSFT reported Jan 09, 2018 at 03:32 PM. 'dev' is not a string it is a const char. like var1.Thus you are indeed comparing the memory adresses. Being that var1 is a char pointer,.var1 is a single char (the first character of the pointed to character sequence to be precise). You can't compare a char against a char pointer, which is why that did not work.

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  5. Strcmp In Dev C++

I guess the Dev C compiler was smart enough. A b is comparing the values of the two pointers to see if they both point to the same object. You can't count on what a compiler might or might not do with those two strings. Coding C or C programs does not and can not depending on what one compiler might or might not do. To compare two string in C Programming, you have to ask to the user to enter the two string and start comparing using the function strcmp. If it will return 0, then both string will be equal and if it will not return 0, then both string will not be equal to each other as shown in here in the following program. Dec 01, 2014  C String Comparison Write a program that asks the user to enter two names and store them in string objects. It should then report whether they are the same or not, ignoring case, To help.

Mar 15, 2011  I use strcmp to compare the value of two strings with the input/output stream, in Dev-C, and it works. I'm not trying to start a fight here, but I'm just letting you know that, at least for me, strcmp works perfectly fine in C that I use, on Dev-C, compiles fine and yes, they are C strings.

Hello! :)

I'm having a problem while comparing one character from a string with a .. string.

This is a part of a pretty complex loop (or, it's complex for me, since I'm new to C++ and programming), but the case is that I need to compare the value of a given i index of a string to a string. For example:

Well, this is just a silly example program, but I hope you see whats wrong (because I don't..)

Thanks! :)

(PS: If you don't understand my english or if I have done something against the forum rules, please send me a PM, so it won't happen again.)

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Nick Evan4,005

Very simple mistake: if (str[x] 'a') should be: if (str[x] 'a') You are comparing each character from a string with another character, so you need single quotes instead of double

if I have done something against the forum rules

Actually, you are one of the few people who get the Code-tags right in their first post, so : bravo!

Compare Two Strings C

Edited by Nick Evan: n/a

This came up in another thread. I gave some advice that I'm not longer sure of. Rather than hijacking that thread, I figured I'd start my own. I advised against using the in that thread. The context was this:

Ancient Dragon said the above was fine and that compare was unnecessary. So I wondered if maybe was only bad when comparing two string variables, so I did a little test program and it worked:

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The line displayed to the screen. So my question is when is it bad to use when comparing strings? I thought the program above was not supposed to work. Apparently I was mistaken. If it's always fine to use , do we ever need to use the 'compare' function?

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Heres the same basic information using a slightly different explanation:

Given:
string a = 'hello';

C++ string compare function

a is not an address. The STL string object may have within it a char (to be used as a C style string) as a member variable, in addition to other member variables such …

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C++ String Compare Function

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C++ String Compare Fast

Ancient Dragon5,243

String Compare C

>>string subChoice =';
It isn't necessary to provide an initializer for strings because that's the default. Just string subChoice; is sufficient.

Strcmp In Dev C++

>> do we ever need to use the 'compare' function
You use it when you need to know if one string is less than, equal to, or greater than the second string, such as in sorting algorithms. You could also use the < and > operators but then that might be too slow when used in if conditions because the comparison would have to be repeated.

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