C references guide

C references guide:

=====================Carrages======================
\n = newline
\0 = null
\t = tab
\b = backspace
\v = virtical tab
\f = form feed
\a = audiable aleart
\\ = backslash
\? = question mark
\' = single quote
\" = double quote
\xhh = hex value
\000 = octal value

===============specifiers================
%d = an integer
%ld = long integer
%f = floating point number
%c = a single character
%s = a string of characters
%p = a memory address
================keywords=================
auto
break
case
char
const
continue
default
do
double
else
enum
extern
float
for
goto
if
int
long
register
return
short
signed
static
struct
switch
typedef
union
unsigned
void
volatile
while

============standard Libaries=============
stdio.h = contains input and output functions.
ctype.h = Contains functions for testing characters.
string.h = contains functions to manipulate strings.
math.h = contains mathematical functions.
stdlib.h = contains utility functions for storage allocation.
assert.h = contains functions that can add diagnostics.
stdarg.h = contains a function that steps through other function arguments.
setjump.h = contains a function that can be used to avoid normal calls.
signal.h = contains functions for handling exceptional conditions.
time.h = contains function manipulating date and time.
limits.h = contains constant definitions for size of data types.
float.h = contains constant definitions relating to floating point numbers.

===========================data types========================
char = A single byte, which can Store a single character.
int = a whole number.
float = a decimal point number which is correct up to 6 decimal points.
double = a decimal number which is correct to 1 decimal points.

========================math functions=======================
+ = addition
- = subtraction
* = multiplication
/ = division
% = modulus (remander Fremont a devision)
++ = increment
-- = decrement

========================assignment===========================
= = assigning
+= = plus then assigning
-= = minus then assigning
*= = multiplying then assigning
/= = divide then assigning
%= = modulus then assigning

=====================comparing values========================
== = equal to
!= = not equal to
> = greater then
< = less then
>= = greater then or equal to
<= = less then or equal to

======================assigning logic========================
&& = AND
|| = OR
! = NOT

==================comparing bit values=======================
| = OR
& = AND
~ = NOT
^ = XOR
<< = Shift Left
>> = Shift Right

=====================Precedence==============================
() = function call:Left to Right
[] = Array index:Left to Right
-> = struct pointer:Left to Right
. = struct member:Left to Right
! = NOT:Right to Left
~ = Bitwise NOT: Right to Left
++ = increment: Right to Left
-- = Decrement:Right to Left
+ = positive sign:Right to Left
- = negative sign:Right to Left
sizeof = size of a data type: Right to Left
* = pointer: Right to Left
& = address mapping:Right to Left
Adressof = addresses of certain data types:Right to Left
* = multiply:Left to Right
/ = divide:Left to Right
% = modulus:Left to Right
+ = add:Left to Right
- = subtract:Left to Right
<< = Shift Left: Left to Right
>> = Shift Right:Left to Right
< = less then: Left to Right
<= = less then or equal to: Left to Right
> = greater then: Left to Right
>= = greater then or equal to: Left to Right
== = equality: Left to Right
!= = inequality: Left to Right
& = Bitwise AND: Left to Right
^ = Bitwise XOR:Left to Right
| = Bitwise OR: Left to Right
&& = AND: Left to Right
|| = OR:Left to Right
?: = conditional: Right to Left
= = assignment: Right to Left
+= = plus then assigning: Right to Left
-= = subtract then assigning: Right to Left
*= = multiply then assigning: Right to Left
/= = divide then assigning: Right to Left
%= = modules then assigning: Right to Left
^= = XOR and assigning: Right to Left
|= Or and assigning: Right to Left
<<= Shift Left and assigning: Right to Left
>>= Shift Right and assigning: Right to Left
, = comma: Left to Right

==================file permissions===========================
r = open an existing file to read
w = open an existing file to write to. Creates new file if doesn't exist
a = appends text to the end of the file
r+ = opens a text file to read from or write to
w+ = open a text file to write to or read from
a+ opens a text file to read from and write to at the end

======================date and time==========================
int tm_sec = seconds after the minute, normally 0-59
int tm_min = minuets after the hour, 0-59
int tm_hour = hours since midnight, 0-23
int tm_mday = day of the month, 1-31
int tm_mon = months since January, 0-11
int tm_wday = says since Sunday, 0-6
int tm_yday = days since January 1st, 0-365
int tm_isdst = is daylight saving mode in effect

===================ASCII character codes=====================

code:         |    char:                  | description:
0                  NUL                      null
1                  SOH                      Start Of Heading
2                  STX                      Start of Text
3                  ETX                      End of Text
4                  EOT                      End Of Trasmission
5                  ENQ                      enquiry
6                  ACK                      Acknowledgement
7                  BEL                      Bell
8                  BS                       BackSpace
9                  TAB                      Horizontal tab
10                 NL                       NewLine
11
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=================Input and Ouput Functions===================

==================Charter Test Functions=====================

===================String Functions==========================

====================math functions===========================

===================Utlity Functions==========================

=================Diagnotic Functions=========================

==================Argument Functions=========================

================Date and Time Functions======================

===================Jump Functions============================

==================Signal Functions===========================

===================Limit Constants===========================

===================Float Constants===========================