======C/C++ Programming Journal======
====August 28th, 2013====
Day one.

**Class Website**
[[http://www/haas/fall2013/cprog]]

lab46.corning-cc.edu/haas/fall2013/cprog

Class introduction to lab46
Regained some familiarity with the lab46 server, trying to remember useful Unix commands. 
  * SSH lab46 (to log in)
  * screen -r (reconnects to the class IRC)
  * Ctrl+d (disconnects from IRC)

====August 29th, 2013====
C - LAB 1

Joe attempted to re-familiarize the class with Bitbucket.org repository. CSCS1320F13
If not already Joe should have a rule of 3's

**Functions** -   
            * Name
            * Input
            * Output

**Variables** -
            * Name
            * Value
            * Data Type

**Hierarchy of programming language**
  - C - Higher level language
  - Translate / compile (GNU Linux - gcc)
  - Processor - Instruction set, machine code referred to as assembly 

**Preprocessing commands**

#include <stdio.h> (has standard i/o functions like printf)


**Hello World Program**

Joe walked us through writing our first C program to gain some insight on how we use commands to get output from a program. So, opening vi editor and typing in the following commands gets us some output in the form of "Hello World"

Some of the basics of VIM I can remember:
  * Cursor navigation - h ←, k ↑, l →, j ↓
  * ESC for command mode
  * Exit vim with out saving- :q!
  * Save and exit - :wq or SHIFT+zz
  * x - deletes selected character
  * i - inserts , or a in command mode to append

Once our program was hastily written we needed to compile the program using GCC (GNU Compiler Collection). The command used was as follows.
$gcc -Wall -o filename hello.c

**GCC Manual**  - [[gcc.gnu.org]]
Section 3 - 
  * pre-processing
  * Compilation
  * Assembly
  * Link


====August 30th, 2013====
Not lost yet...

**Class Repo** - src/cprog

  * $mv *.c ~/src  (move all files ending in .c to the src directory)
  * $mkdir ~/src/cprog (make directory in src called cprog
  * $mv *.c ~/src/cprog (moving all my .c files from src to new cprog dir)
  * hg status
  * hg add
  * hg commit -m
  * hg push
  * hg update
  * hg log



====September 4th, 2013====

**Data Types**
C uses keywords for data types, there are 3 types of data

**Integer Types** (scalar)
  * char
  * short int
  * int
  * long int
  * long long int

**Floating Point**
  * float
  * double
  * long double

**Pointers**(memory variables) (composite)
  * Arrays
  * Structures

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