Lecture 0:Introduction

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Goals of CS 106L

Learn what features are out there in C++ and why they exist.
Become comfortable with reading C++ documentation.
Become familiar with the design philosophy of modern C++.
NOT: memorize the syntax of C++.

Assembly¶

An example of inline assembly in C++ to print "Hello, world!" to the console:

#include "stdio.h"
#include "stdlib.h"

extern "C" void myputs(char* str) {
    printf("%s\n", str);
}

int main(int argc, char *argv[]) {
    asm(  
        "sub $0x20,%rsp\n\t"
        "movabs $0x77202c6f6c6c6548,%rax\n\t"
        "mov %rax,(%rsp)\n\t"
        "movl $0x646c726f, 0x8(%rsp)\n\t"
        "movw $0x21, 0xc(%rsp)\n\t"
        "movb $0x0,0xd(%rsp)\n\t"
        "leaq (%rsp),%rax\n\t"
        "mov %rax,%rdi\n\t"
        "call myputs\n\t"
        "add $0x20, %rsp\n\t"
        );
    return EXIT_SUCCESS;
}

For the reason that people use different assembly syntax, a code work well on others computer may not work on your machine. C++ is Cross-platform.

Here is a x86 Assembly Guide

Design Philosophy of C++¶

Performance! Performance! Performance!

Smome Command¶

About compiling command

g++ -std=c++17 -Wall streams.cpp -o streams

References¶

Here is the slides of lecture 1

Here is Cpp Core Guidence wirtten by Bjarne Stroustrup and Herb Sutter.