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POc++ found an example on splitting strings trying to figure out why change to it changes result
 

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    <p>I'm learning about splitting strings for a program in class, and i came across this example.</p> <pre><code>#include &lt;string&gt; #include &lt;sstream&gt; #include &lt;iostream&gt; int main() { std::string str = "23454323 ABCD EFGH"; std::istringstream iss(str); std::string word; while(iss &gt;&gt; word) { std::cout &lt;&lt; word &lt;&lt; '\n'; } } </code></pre> <p>I modified so that the user instead inputs the string,but if I input the string stored in str i get 23454323 and not the other material in the string.</p> <pre><code>#include &lt;string&gt; #include &lt;sstream&gt; #include &lt;iostream&gt; using namespace std; int main() { string str; cout&lt;&lt;"Enter a postfix with a space between each object:"; cin&gt;&gt;str; istringstream iss(str); string word; while(iss &gt;&gt; word) { cout &lt;&lt; word &lt;&lt; '\n'; } } </code></pre> <p>Ok, thanks for the help everyone got it!</p>
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    1. CO`std::cin >> str;` acts the exact same way as `iss >> word`.
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    2. COI assume this is all related to [the same assignment](http://stackoverflow.com/questions/19641705/how-to-push-a-string-into-a-stack-one-element-at-at-time).
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    3. CO`cin >> str` will read up to first whitespace, and "eat" that whitespace. So, you're giving the algorithm much different input in the second case. Running through each line in a debugger would help. So would reading about each method you are using in a C++ API reference.
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