C++ Primer Plus

I'm a Deep Learning and Robotic (ROS) developer. And I am adept in Python. Initially, I was thinking that since I'm not a heavy ROS developer, so it's enough for me to read and understand C++ codes for I don't need to write beautiful C++ codes.

However, such point of view is quickly challenged when I re-implement RandLA-Net, where dowmsampling a point cloud of million points is needed. I finished python version of grid downsampling the point cloud, but only to find it takes about 30 minutes to process a point cloud, compared with thousands of point clouds of Semantic-KITTI.

Fortunately, I build the C++ code for point cloud downsampling offered by the author, finding that it takes ~0.5s to process a million-point point cloud. It was at that time that I deeply realize that C++ is the foundation of a programmer, for its efficiency and its original concepts of OOP, especially for a CS students like me.

C++ introduces and helps programmer mastering OOP concepts. And the importance is just the same as the leading of C to a new bee who do not have any programming experience before.

So, I decide to put aside Deep Learning coding take a month or so to read the renowned C++ Primer Plus by Stephen Prata to lay a solid foundation for future programming.

These is the reason of creating this repository,

1. Introduction

This repository contains codes of C++ Primer Plus by Stephen Prata. And all the code is formatted as a CMake project.

Each chapter is regarded as a mutually independent project, so, there is a CMakeLists.txt in each chapter folder. And in total, each chapter is also regarded as a sub-project to the whole project in the root CMakeLists.txt.

2. Build

1. build whole project

You can build all code in the root directory:

git clone https://github.com/jackwang0108/CPlusPlusPrimerPlus.git
cd CPlusPlusPrimerPlus
mkdir build && cd build
cmake ..
make -j$(nproc)

And after build, code of each chapter will be put in chapterX/bin/

tree CPlusPlusPrimerPlus/ -L 3 -d -I build

The output (ignored CPlusPlusPrimerPlus/**/build) is

CPlusPlusPrimerPlus/
├── chapter10
│   ├── bin
│   └── include
├── chapter11
│   ├── bin
│   └── include
├── chapter12
│   ├── bin
│   └── include
├── chapter13
│   ├── bin
│   └── include
├── chapter14
│   ├── bin
│   └── include
├── chapter15
│   ├── bin
│   └── include
├── chapter16
│   └── bin
├── chapter17
│   └── bin
├── chapter18
│   ├── bin
│   └── include
├── chapter2
│   └── bin
├── chapter3
│   └── bin
├── chapter4
│   └── bin
├── chapter5
│   └── bin
├── chapter6
│   └── bin
├── chapter7
│   └── bin
├── chapter8
│   └── bin
└── chapter9
    ├── bin
    ├── include
    └── library

2. build each sub-project

Alternatively, you can build each sub-project independently

git clone https://github.com/jackwang0108/CPlusPlusPrimerPlus.git
cd CPlusPlusPrimerPlus/chapter2
mkdir build && cd build
cmake ..
make -j$(nproc)

And after build, code of the chapterX will be put in chapterX/bin/

tree -L 1 -d

The output is

.
├── bin
└── build

2 directories

3. Tools

To simplify the boring building and testing, I've written some command line tools. You can activate the tools by running:

cd CPlusPlusPrimerPlus
source build_tools

And then, you can run the following command line tools: cmakerun, cplusbuild and cplusrun

Notes: the tools are tested under Ubuntu, but should work fine in other Linux platform.

1. cmakerun

cmakerun is a helper tool for cmake. After build the codes, you can run it under chapterX/ or chapterX/build. It will offer completion and help you running the executable target.

source build_tools
cd chapter14
cmakerun <TAB><TAB>

And you will see the completion

CPlusPlusPrimerPlus/chapter14 (master)$ cmakerun
frnd2tmp    manyfrnd    pair        stacktem    stkoptr1    tempmemb    tempparm    tmp2tmp     twod        use_stuc    use_stui    workertest  workmi

Similarly, you can run under build directory, which is especially helpful when testing

source build_tools
cd chapter14/build
cmakerun <TAB><TAB>

CPlusPlusPrimerPlus/chapter14/build (master)$ cmakerun 
frnd2tmp    manyfrnd    pair        stacktem    stkoptr1    tempmemb    tempparm    tmp2tmp     twod        use_stuc    use_stui    workertest  workmi

After selecting the target to run, you will see

cmakerun manyfrnd pair

===================== Planning to run 2 files =====================
Run:
        manyfrnd
        pair
=========================== Start running =========================
Running in /home/jack/projects/CPlusPlusPrimerPlus/chapter14/build
/home/jack/projects/CPlusPlusPrimerPlus/chapter14/build/bin not exists, assuming in build...
/home/jack/projects/CPlusPlusPrimerPlus/chapter14/build/../bin detected!
Running: manyfrnd
        Source /home/jack/projects/CPlusPlusPrimerPlus/chapter14/build/../bin/manyfrnd
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
hfi1, hfi2: 10, 10
hfdb, hfi2: 10.5, 10
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Running: pair
        Source /home/jack/projects/CPlusPlusPrimerPlus/chapter14/build/../bin/pair
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Rating:  Eatery
5:      The Purpled Duck
4:      Jaquie's Frisco AI Fresco
5:      Cafe Souffle
3:      Bertie's Eats
Oops! Revised rating:
6:      Bertie's Fab Eats
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

2. cplusbuild

cplusbuild is a simple tool to build single source file program, which is helper for fast testing.

You should run under sub-project directory, and all target is put to bin

source build_tools
cd chapter3
cplusbuild <TAB><TAB>

And you will see

CPlusPlusPrimerPlus/chapter3 (master)$ cplusbuild 
arith.cpp     bondini.cpp   divide.cpp    floatnum.cpp  hexoct2.cpp   limits.cpp    morechar.cpp  
assign.cpp    chartype.cpp  exceed.cpp    fltadd.cpp    hexoct.cpp    modulus.cpp   typecast.cpp

Regular expression is supported.

cplusbuild *.cpp

You will see

==================== Planning to build 14 files ====================
Target:
        arith.cpp
        assign.cpp
        bondini.cpp
        chartype.cpp
        divide.cpp
        exceed.cpp
        floatnum.cpp
        fltadd.cpp
        hexoct2.cpp
        hexoct.cpp
        limits.cpp
        modulus.cpp
        morechar.cpp
        typecast.cpp
========================== Start building =========================
Working in /home/jack/projects/C++PrimerPlus/chapter3
/home/jack/projects/C++PrimerPlus/chapter3/bin exists, redirecting...
Building: arith.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/arith
        success
Building: assign.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/assign
assign.cpp: In function ‘int main()’:
assign.cpp:11:14: warning: overflow in conversion from ‘double’ to ‘int’ changes value from ‘7.2e+12’ to ‘2147483647’ [-Woverflow]
   11 |   int debt = 7.2E12;
      |              ^~~~~~
        success
Building: bondini.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/bondini
        success
Building: chartype.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/chartype
        success
Building: divide.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/divide
        success
Building: exceed.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/exceed
        success
Building: floatnum.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/floatnum
        success
Building: fltadd.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/fltadd
        success
Building: hexoct2.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/hexoct2
        success
Building: hexoct.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/hexoct
        success
Building: limits.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/limits
        success
Building: modulus.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/modulus
        success
Building: morechar.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/morechar
        success
Building: typecast.cpp
        Destination /home/jack/projects/C++PrimerPlus/chapter3/bin/typecast
        success
============================= Success =============================
Build files:
        /home/jack/projects/C++PrimerPlus/chapter3/bin/arith
        /home/jack/projects/C++PrimerPlus/chapter3/bin/assign
        /home/jack/projects/C++PrimerPlus/chapter3/bin/bondini
        /home/jack/projects/C++PrimerPlus/chapter3/bin/chartype
        /home/jack/projects/C++PrimerPlus/chapter3/bin/divide
        /home/jack/projects/C++PrimerPlus/chapter3/bin/exceed
        /home/jack/projects/C++PrimerPlus/chapter3/bin/floatnum
        /home/jack/projects/C++PrimerPlus/chapter3/bin/fltadd
        /home/jack/projects/C++PrimerPlus/chapter3/bin/hexoct2
        /home/jack/projects/C++PrimerPlus/chapter3/bin/hexoct
        /home/jack/projects/C++PrimerPlus/chapter3/bin/limits
        /home/jack/projects/C++PrimerPlus/chapter3/bin/modulus
        /home/jack/projects/C++PrimerPlus/chapter3/bin/morechar
        /home/jack/projects/C++PrimerPlus/chapter3/bin/typecast
Run cplusrun

3. cplusrun

cplusrun is accompaniment of cplusbuild. After running cplusbuild, simple run cplusrun you can quickly run your testing codes.

cplusrun <TAB><TAB>

You will see

CPlusPlusPrimerPlus/chapter3 (master)$ cplusrun 
arith     assign    bondini   chartype  divide    exceed    floatnum  fltadd    hexoct    hexoct2   limits    modulus   morechar  typecast

And after selecting the target to run, you will see

cplusrun limits arith

C++PrimerPlus/chapter3 (master)$ cplusrun limits arith 
===================== Planning to run 2 files =====================
Run:
        limits
        arith
=========================== Start running =========================
Running in /home/jack/projects/C++PrimerPlus/chapter3
/home/jack/projects/C++PrimerPlus/chapter3/bin detected!
Running: limits
        Source /home/jack/projects/C++PrimerPlus/chapter3/bin/limits
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
int is 4 bytes.
short is 2 bytes.
long is 8 bytes.
long long is 8 bytes.
Maximum values:
int: 2147483647
short: 32767
long: 9223372036854775807
long long: 9223372036854775807
Minimum int value = -2147483648
Bits per byte = 8
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Running: arith
        Source /home/jack/projects/C++PrimerPlus/chapter3/bin/arith
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Enter a number: 1
Enter another number: 2
hats = 1.000000; heads = 2.000000
hats + heads = 3.000000
hats - heads = -1.000000
hats * heads = 2.000000
hats / heads = 0.500000
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Repository files navigation

C++ Primer Plus

1. Introduction

2. Build

1. build whole project

2. build each sub-project

3. Tools

1. cmakerun

2. cplusbuild

3. cplusrun

About

Uh oh!

Releases

Packages

Languages

Name		Name	Last commit message	Last commit date
Latest commit History 77 Commits
chapter10		chapter10
chapter11		chapter11
chapter12		chapter12
chapter13		chapter13
chapter14		chapter14
chapter15		chapter15
chapter16		chapter16
chapter17		chapter17
chapter18		chapter18
chapter2		chapter2
chapter3		chapter3
chapter4		chapter4
chapter5		chapter5
chapter6		chapter6
chapter7		chapter7
chapter8		chapter8
chapter9		chapter9
.gitignore		.gitignore
CMakeLists.txt		CMakeLists.txt
LICENSE		LICENSE
README.md		README.md
build_tools.sh		build_tools.sh

License

jackwang0108/CPlusPlusPrimerPlus

Folders and files

Latest commit

History

Repository files navigation

C++ Primer Plus

1. Introduction

2. Build

1. build whole project

2. build each sub-project

3. Tools

1. cmakerun

2. cplusbuild

3. cplusrun

About

Resources

License

Uh oh!

Stars

Watchers

Forks

Releases

Packages 0

Languages

Packages