std.cfg: Added support for std::quoted() (#5996)

Author: orbitcowboy

cfg/std.cfg

@@ -6428,7 +6428,7 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
                             std::istringstream& std::istringstream::get (char* s, streamsize n, char delim);
        stream buffer (3)    std::istringstream& std::istringstream::get (streambuf& sb);
                             std::istringstream& std::istringstream::get (streambuf& sb, char delim);-->
-  <!-- There is currently no way to define this properly because Cppcheck lacks support for 
+  <!-- There is currently no way to define this properly because Cppcheck lacks support for
        overloaded functions.-->
   <function name="std::istream::get,std::istringstream::get">
     <noreturn>false</noreturn>
@@ -6566,6 +6566,31 @@ The obsolete function 'gets' is called. With 'gets' you'll get a buffer overrun
       <valid>0:</valid>
     </arg>
   </function>
+  <!--https://en.cppreference.com/w/cpp/io/manip/quoted -->
+  <!--template< class CharT >
+      /*unspecified*/ quoted( const CharT* s,
+                              CharT delim = CharT('"'), CharT escape = CharT('\\') ); (1)(since C++14)
+      template< class CharT, class Traits, class Allocator >
+      /*unspecified*/ quoted( const std::basic_string<CharT, Traits, Allocator>& s,
+                              CharT delim = CharT('"'), CharT escape = CharT('\\') ); (2)(since C++14)
+      template< class CharT, class Traits>
+      /*unspecified*/ quoted( std::basic_string_view<CharT, Traits> s,
+                              CharT delim = CharT('"'), CharT escape = CharT('\\') ); (3)(since C++17)
+      template< class CharT, class Traits, class Allocator >
+      /*unspecified*/ quoted( std::basic_string<CharT, Traits, Allocator>& s,
+                              CharT delim=CharT('"'), CharT escape=CharT('\\') ); (4)(since C++14) -->
+  <function name="std::quoted">
+    <!-- This function returns an object of unspecified type -->
+    <leak-ignore/>
+    <noreturn>false</noreturn>
+    <arg nr="1" direction="in"/>
+    <arg nr="2" direction="in" default="&apos;&quot;&apos;">
+      <not-uninit/>
+    </arg>
+    <arg nr="3" direction="in" default="&apos;\\&apos;">
+      <not-uninit/>
+    </arg>
+  </function>
   <!--std::ostream& std::ostream::write (const char* s, streamsize n);-->
   <function name="std::ostream::write">
     <returnValue type="std::ostream &amp;"/>
@@ -8303,7 +8328,7 @@ initializer list (7) string& replace (const_iterator i1, const_iterator i2, init
       <not-bool/>
       <strz/>
     </arg>
-  </function>  
+  </function>
   <!-- int mtx_init( mtx_t* mutex, int type ); // since C11 -->
   <function name="mtx_init">
     <noreturn>false</noreturn>

test/cfg/std.cpp

@@ -53,6 +53,20 @@
 #include <span>
 #endif
 
+// https://en.cppreference.com/w/cpp/io/manip/quoted
+void uninitvar_std_quoted(std::stringstream &ss, const std::string &input, const char delim, const char escape)
+{
+    ss << std::quoted(input);
+    ss << std::quoted(input, delim);
+    ss << std::quoted(input, delim, escape);
+    char delimChar;
+    // cppcheck-suppress uninitvar
+    ss << std::quoted(input, delimChar);
+    char escapeChar;
+    // cppcheck-suppress uninitvar
+    ss << std::quoted(input, delim, escapeChar);
+}
+
 int zerodiv_ldexp()
 {
     int i = std::ldexp(0.0, 42.0);