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Hi everyone,

I am interested in the following feature:

// Unconstrained generic function
auto func(const auto &i) {
  std::cout << "Type of object i is " << typeid(i).name() << std::endl;
  std::cout << "Value is " << i << std::endl;
}

int main() {
  func(1);
  func(std::string{"Hi Denis !"});
  return 0;
}


I knew that in C++14 we already have something like this:

auto func = [](const auto &i) {

  std::cout << "Type of object i is " << typeid(i).name() << std::endl;
  std::cout << "Value is " << i << std::endl;
}


But when the same appear for simply functions either ?

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<div dir=3D"ltr">Hi everyone,<br><br>I am interested in the following featu=
re:<br><br><pre class=3D"lang-cpp prettyprint prettyprinted" style=3D""><co=
de><div style=3D"background-color: rgb(250, 250, 250); border-color: rgb(18=
7, 187, 187); border-style: solid; border-width: 1px; overflow-wrap: break-=
word;" class=3D"prettyprint"><code class=3D"prettyprint"><div class=3D"subp=
rettyprint"><pre class=3D"lang-cpp prettyprint prettyprinted" style=3D""><c=
ode><span style=3D"color: #800;" class=3D"styled-by-prettify">// Unconstrai=
ned generic function</span><span style=3D"color: #000;" class=3D"styled-by-=
prettify"><br></span><span style=3D"color: #008;" class=3D"styled-by-pretti=
fy">auto</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> f=
unc</span><span style=3D"color: #660;" class=3D"styled-by-prettify">(</span=
><span style=3D"color: #008;" class=3D"styled-by-prettify">const</span><spa=
n style=3D"color: #000;" class=3D"styled-by-prettify"> </span><span style=
=3D"color: #008;" class=3D"styled-by-prettify">auto</span><span style=3D"co=
lor: #000;" class=3D"styled-by-prettify"> </span><span style=3D"color: #660=
;" class=3D"styled-by-prettify">&amp;</span><span style=3D"color: #000;" cl=
ass=3D"styled-by-prettify">i</span><span style=3D"color: #660;" class=3D"st=
yled-by-prettify">)</span><span style=3D"color: #000;" class=3D"styled-by-p=
rettify"> </span><span style=3D"color: #660;" class=3D"styled-by-prettify">=
{</span><span style=3D"color: #000;" class=3D"styled-by-prettify"><br>=C2=
=A0 std</span><span style=3D"color: #660;" class=3D"styled-by-prettify">::<=
/span><span style=3D"color: #000;" class=3D"styled-by-prettify">cout </span=
><span style=3D"color: #660;" class=3D"styled-by-prettify">&lt;&lt;</span><=
span style=3D"color: #000;" class=3D"styled-by-prettify"> </span><span styl=
e=3D"color: #080;" class=3D"styled-by-prettify">&quot;Type of object i is &=
quot;</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> </sp=
an><span style=3D"color: #660;" class=3D"styled-by-prettify">&lt;&lt;</span=
><span style=3D"color: #000;" class=3D"styled-by-prettify"> </span><span st=
yle=3D"color: #008;" class=3D"styled-by-prettify">typeid</span><span style=
=3D"color: #660;" class=3D"styled-by-prettify">(</span><span style=3D"color=
: #000;" class=3D"styled-by-prettify">i</span><span style=3D"color: #660;" =
class=3D"styled-by-prettify">).</span><span style=3D"color: #000;" class=3D=
"styled-by-prettify">name</span><span style=3D"color: #660;" class=3D"style=
d-by-prettify">()</span><span style=3D"color: #000;" class=3D"styled-by-pre=
ttify"> </span><span style=3D"color: #660;" class=3D"styled-by-prettify">&l=
t;&lt;</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> std=
</span><span style=3D"color: #660;" class=3D"styled-by-prettify">::</span><=
span style=3D"color: #000;" class=3D"styled-by-prettify">endl</span><span s=
tyle=3D"color: #660;" class=3D"styled-by-prettify">;</span><span style=3D"c=
olor: #000;" class=3D"styled-by-prettify"><br>=C2=A0 std</span><span style=
=3D"color: #660;" class=3D"styled-by-prettify">::</span><span style=3D"colo=
r: #000;" class=3D"styled-by-prettify">cout </span><span style=3D"color: #6=
60;" class=3D"styled-by-prettify">&lt;&lt;</span><span style=3D"color: #000=
;" class=3D"styled-by-prettify"> </span><span style=3D"color: #080;" class=
=3D"styled-by-prettify">&quot;Value is &quot;</span><span style=3D"color: #=
000;" class=3D"styled-by-prettify"> </span><span style=3D"color: #660;" cla=
ss=3D"styled-by-prettify">&lt;&lt;</span><span style=3D"color: #000;" class=
=3D"styled-by-prettify"> i </span><span style=3D"color: #660;" class=3D"sty=
led-by-prettify">&lt;&lt;</span><span style=3D"color: #000;" class=3D"style=
d-by-prettify"> std</span><span style=3D"color: #660;" class=3D"styled-by-p=
rettify">::</span><span style=3D"color: #000;" class=3D"styled-by-prettify"=
>endl</span><span style=3D"color: #660;" class=3D"styled-by-prettify">;</sp=
an><span style=3D"color: #000;" class=3D"styled-by-prettify"><br></span><sp=
an style=3D"color: #660;" class=3D"styled-by-prettify">}</span><span style=
=3D"color: #000;" class=3D"styled-by-prettify"><br><br></span><span style=
=3D"color: #008;" class=3D"styled-by-prettify">int</span><span style=3D"col=
or: #000;" class=3D"styled-by-prettify"> main</span><span style=3D"color: #=
660;" class=3D"styled-by-prettify">()</span><span style=3D"color: #000;" cl=
ass=3D"styled-by-prettify"> </span><span style=3D"color: #660;" class=3D"st=
yled-by-prettify">{</span><span style=3D"color: #000;" class=3D"styled-by-p=
rettify"><br>=C2=A0 func</span><span style=3D"color: #660;" class=3D"styled=
-by-prettify">(</span><span style=3D"color: #066;" class=3D"styled-by-prett=
ify">1</span><span style=3D"color: #660;" class=3D"styled-by-prettify">);</=
span><span style=3D"color: #000;" class=3D"styled-by-prettify"><br>=C2=A0 f=
unc</span><span style=3D"color: #660;" class=3D"styled-by-prettify">(</span=
><span style=3D"color: #000;" class=3D"styled-by-prettify">std</span><span =
style=3D"color: #660;" class=3D"styled-by-prettify">::</span><span style=3D=
"color: #008;" class=3D"styled-by-prettify">string</span><span style=3D"col=
or: #660;" class=3D"styled-by-prettify">{</span><span style=3D"color: #080;=
" class=3D"styled-by-prettify">&quot;Hi Denis !&quot;</span><span style=3D"=
color: #660;" class=3D"styled-by-prettify">});</span><span style=3D"color: =
#000;" class=3D"styled-by-prettify"><br>=C2=A0 </span><span style=3D"color:=
 #008;" class=3D"styled-by-prettify">return</span><span style=3D"color: #00=
0;" class=3D"styled-by-prettify"> </span><span style=3D"color: #066;" class=
=3D"styled-by-prettify">0</span><span style=3D"color: #660;" class=3D"style=
d-by-prettify">;</span><span style=3D"color: #000;" class=3D"styled-by-pret=
tify"><br></span><span style=3D"color: #660;" class=3D"styled-by-prettify">=
}</span></code></pre></div></code></div><span class=3D"pun"><br></span><spa=
n class=3D"pun">I knew that in C++14 we already have something like this:<b=
r><br></span></code><code><span style=3D"color: #008;" class=3D"styled-by-p=
rettify">auto</span><span style=3D"color: #000;" class=3D"styled-by-prettif=
y"> func </span><span style=3D"color: #660;" class=3D"styled-by-prettify">=
=3D</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> </span=
><span style=3D"color: #660;" class=3D"styled-by-prettify">[](</span><span =
style=3D"color: #008;" class=3D"styled-by-prettify">const</span><span style=
=3D"color: #000;" class=3D"styled-by-prettify"> </span><span style=3D"color=
: #008;" class=3D"styled-by-prettify">auto</span><span style=3D"color: #000=
;" class=3D"styled-by-prettify"> </span><span style=3D"color: #660;" class=
=3D"styled-by-prettify">&amp;</span><span style=3D"color: #000;" class=3D"s=
tyled-by-prettify">i</span><span style=3D"color: #660;" class=3D"styled-by-=
prettify">)</span><span style=3D"color: #000;" class=3D"styled-by-prettify"=
> </span><span style=3D"color: #660;" class=3D"styled-by-prettify">{</span>=
</code><span style=3D"color: #000;" class=3D"styled-by-prettify"></span><br=
><span style=3D"color: #000;" class=3D"styled-by-prettify"></span><code><sp=
an class=3D"pun"><div style=3D"background-color: rgb(250, 250, 250); border=
-color: rgb(187, 187, 187); border-style: solid; border-width: 1px; overflo=
w-wrap: break-word;" class=3D"prettyprint"><code class=3D"prettyprint"><div=
 class=3D"subprettyprint"><code></code><pre class=3D"lang-cpp prettyprint p=
rettyprinted" style=3D""><code><span style=3D"color: #000;" class=3D"styled=
-by-prettify">=C2=A0 std</span><span style=3D"color: #660;" class=3D"styled=
-by-prettify">::</span><span style=3D"color: #000;" class=3D"styled-by-pret=
tify">cout </span><span style=3D"color: #660;" class=3D"styled-by-prettify"=
>&lt;&lt;</span><span style=3D"color: #000;" class=3D"styled-by-prettify"> =
</span><span style=3D"color: #080;" class=3D"styled-by-prettify">&quot;Type=
 of object i is &quot;</span><span style=3D"color: #000;" class=3D"styled-b=
y-prettify"> </span><span style=3D"color: #660;" class=3D"styled-by-prettif=
y">&lt;&lt;</span><span style=3D"color: #000;" class=3D"styled-by-prettify"=
> </span><span style=3D"color: #008;" class=3D"styled-by-prettify">typeid</=
span><span style=3D"color: #660;" class=3D"styled-by-prettify">(</span><spa=
n style=3D"color: #000;" class=3D"styled-by-prettify">i</span><span style=
=3D"color: #660;" class=3D"styled-by-prettify">).</span><span style=3D"colo=
r: #000;" class=3D"styled-by-prettify">name</span><span style=3D"color: #66=
0;" class=3D"styled-by-prettify">()</span><span style=3D"color: #000;" clas=
s=3D"styled-by-prettify"> </span><span style=3D"color: #660;" class=3D"styl=
ed-by-prettify">&lt;&lt;</span><span style=3D"color: #000;" class=3D"styled=
-by-prettify"> std</span><span style=3D"color: #660;" class=3D"styled-by-pr=
ettify">::</span><span style=3D"color: #000;" class=3D"styled-by-prettify">=
endl</span><span style=3D"color: #660;" class=3D"styled-by-prettify">;</spa=
n><span style=3D"color: #000;" class=3D"styled-by-prettify"><br>=C2=A0 std<=
/span><span style=3D"color: #660;" class=3D"styled-by-prettify">::</span><s=
pan style=3D"color: #000;" class=3D"styled-by-prettify">cout </span><span s=
tyle=3D"color: #660;" class=3D"styled-by-prettify">&lt;&lt;</span><span sty=
le=3D"color: #000;" class=3D"styled-by-prettify"> </span><span style=3D"col=
or: #080;" class=3D"styled-by-prettify">&quot;Value is &quot;</span><span s=
tyle=3D"color: #000;" class=3D"styled-by-prettify"> </span><span style=3D"c=
olor: #660;" class=3D"styled-by-prettify">&lt;&lt;</span><span style=3D"col=
or: #000;" class=3D"styled-by-prettify"> i </span><span style=3D"color: #66=
0;" class=3D"styled-by-prettify">&lt;&lt;</span><span style=3D"color: #000;=
" class=3D"styled-by-prettify"> std</span><span style=3D"color: #660;" clas=
s=3D"styled-by-prettify">::</span><span style=3D"color: #000;" class=3D"sty=
led-by-prettify">endl</span><span style=3D"color: #660;" class=3D"styled-by=
-prettify">;</span><span style=3D"color: #000;" class=3D"styled-by-prettify=
"><br></span><span style=3D"color: #660;" class=3D"styled-by-prettify">}</s=
pan></code></pre></div></code></div><br>But when the same appear for simply=
 functions either ?<br></span></code></pre></div>

<p></p>

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