Templates adalah fondasi di balik kehebatan STL C++, memungkinkan penulisan fungsi dan kelas yang dapat bekerja dengan tipe data apapun secara type-safe.
Poin Kunci Materi:
- Generic Programming: Kode ditulis satu kali dan compiler menghasilkan versi biner khusus untuk setiap tipe data yang digunakan.
- Zero Runtime Overhead: Seluruh kode template diekspansi pada saat waktu kompilasi (compile-time code generation).
- Type Deduction: C++ mampu menebak tipe template secara otomatis tanpa perlu menuliskan
<type> secara eksplisit.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<style>
body {
font-family: 'Fira Code', Consolas, Monaco, monospace;
background: #0f172a;
color: #f8fafc;
padding: 20px;
margin: 0;
line-height: 1.6;
}
.header {
background: #1e293b;
padding: 10px 16px;
border-radius: 8px 8px 0 0;
border-bottom: 2px solid #334155;
display: flex;
align-items: center;
gap: 8px;
font-size: 13px;
color: #94a3b8;
}
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot-red { background: #ef4444; }
.dot-yellow { background: #eab308; }
.dot-green { background: #22c55e; }
.code-box {
background: #1e293b;
padding: 18px 20px;
border-bottom: 1px dashed #334155;
color: #38bdf8;
font-size: 14px;
white-space: pre-wrap;
}
.comment { color: #64748b; font-style: italic; }
.output-box {
background: #020617;
padding: 18px 20px;
border-radius: 0 0 8px 8px;
color: #e2e8f0;
font-size: 13px;
}
</style>
</head>
<body>
<div class="header">
<span class="dot dot-red"></span>
<span class="dot dot-yellow"></span>
<span class="dot dot-green"></span>
<span style="margin-left: 8px; font-weight: bold; color: #38bdf8;">⚙️ C++ Templates - Skillance C++20</span>
</div>
<div class="code-box">
<span class="comment">// Skrip C++20 - Skillance Academy Indonesia</span>
#include <iostream>
// Generic Function Template
template <typename T>
T nilaiMaksimum(T a, T b) {
return (a > b) ? a : b;
}
int main() {
std::cout << "Maksimum Integer: " << nilaiMaksimum<int>(15, 29) << "\n";
std::cout << "Maksimum Double : " << nilaiMaksimum(3.14, 2.71) << "\n";
std::cout << "Maksimum Char : " << nilaiMaksimum('A', 'Z') << std::endl;
return 0;
}
</div>
<div class="output-box">
<div style="color: #64748b; margin-bottom: 6px;">[Terminal Output] > g++ -std=c++20 main.cpp -o main && ./main</div>
<div style="color: #4ade80; font-weight: bold;">Maksimum Integer: 29<br>Maksimum Double : 3.14<br>Maksimum Char : Z</div>
</div>
</body>
</html>
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