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    <p>Even though <code>strcat()</code> is probably the best solution as already mentioned by ScarletAmanranth, there is also another one.</p> <p>One can also convert the c-strings to <code>std::string</code>'s first, perform any desired operations on them and then convert the result back to a c-string. This might better suit your needs in some cases.</p> <p><strong>Example:</strong></p> <pre><code>const char* str1 = "foo"; const char* str2 = "bar"; std::string combined = std::string(str1) + str2; // notice std::string + char* =&gt; std::string const char* result = combined.c_str(); </code></pre> <p><strong>Advantages:</strong></p> <ul> <li>Can be written as oneliner, without any further delcarations of buffers etc.</li> <li>Might allow easier manipulation through <code>std::string</code> methods and related functions</li> </ul> <p><strong>Drawbacks:</strong></p> <ul> <li>Additional overhead</li> <li>Only a <code>const char*</code> can be acquired, if a <code>char*</code> is required one must copy the c-string again</li> </ul> <p>Consider that the returned <code>const char*</code> directly points to the internal buffer of the <code>std::string</code> object. Thus the pointer only remains valid as long as the <code>std::string</code> object does not run out-of-scope. Therefor using this with a temporary like this <code>const char* result = (std::string(str1) + str2).c_str();</code> is a very bad idea (whereas it would be legit to write someting like that in a function call, as the temporary remains until the call returns).</p>
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    1. POHow to * char + * char in c++?
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    1. USSebastian Hoffmann
    1. USSebastian Hoffmann
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    1. COc_str(); Done, app crashed...
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    2. CO`c_str()` has `No-throw guarantee`. Make sure that the pointer only remains valid as long as the `std::string` remains valid. The acquired pointer directly points to the buffer of the `std::string` object. This is especially important if working with temporaries. I think i will inlcude this in my answere
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    3. COWhat happens if you do a const_cast on the returned string by c_srt(), then modify the char*, then use c_str() again?
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      1. USlucas92
 

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