Add truecolor support

src/iomanip.cpp

@@ -2,7 +2,6 @@
 #include <unistd.h>
 #include <cmath>
 #include <cstdlib>
-#include <string>
 
 using namespace sc::io;
 
@@ -244,3 +243,17 @@ sc::io::trgb::operator rgbf() {
     };
     return result;
 }
+
+sc::io::truecolorf::truecolorf(int r, int g, int b) : _r {r}, _g {g}, _b {b} {}
+
+sc::io::truecolorb::truecolorb(int r, int g, int b) : _r {r}, _g {g}, _b {b} {}
+
+std::ostream& sc::io::operator<<(std::ostream& out, const truecolorf& obj) {
+    out << "\x1b[38;2;" << obj._r << ';' << obj._g << ';' << obj._b << 'm';
+    return out;
+}
+
+std::ostream& sc::io::operator<<(std::ostream& out, const truecolorb& obj) {
+    out << "\x1b[48;2;" << obj._r << ';' << obj._g << ';' << obj._b << 'm';
+    return out;
+}

src/iomanip.hpp

@@ -92,6 +92,25 @@ namespace sc {
         const trgb magenta {1.0, 0.0, 1.0};
         const trgb cyan    {0.0, 1.0, 1.0};
         const trgb white   {1.0, 1.0, 1.0};
+
+        struct truecolorf {
+            int _r; // 0 .. 255
+            int _g;  // 0 .. 255
+            int _b; // 0 .. 255
+
+            truecolorf(int r, int g, int b);
+        };
+
+        struct truecolorb {
+            int _r; // 0 .. 255
+            int _g;  // 0 .. 255
+            int _b; // 0 .. 255
+
+            truecolorb(int r, int g, int b);
+        };
+
+        std::ostream& operator<<(std::ostream& out, const truecolorf& obj);
+        std::ostream& operator<<(std::ostream& out, const truecolorb& obj);
     }
 }