Master Index.

This is an index into the C Programming Reference Guide. It is probably not complete. If you dont find something in here - don't give up, try another route and if you find it, add it to this index.

% format identifer.
% Operator (modulo).
+ Operator (addition).
- Operator (Subtraction).
/ Operator (division).
/* Open a comment.
// Inline comment (C++).
* Operator (Multiplication).
* width/percision formating character.
* Pointer operator (Unary).
*/ Close a comment.
-- Operator (decrement).
++ Operator (increment).
= Operator (Assignment, Equals).
*= Operator.
/= Operator.
%= Operator.
+= Operator.
-= Operator.
<<= Operator.
>>= Operator.
&= Operator.
^= Operator.

|= Operator.
== Operator.
!= Operator.
> Operator.
< Operator.
>= Operator.
<= Operator.
&& Operator.
|| Operator.
! Operator.
& Reference Variables (C++).
& Bitwise AND Operator (binary).
| Bitwise OR Operator (binary).
^ Operator.
<< Shift Left Operator.
>> Shift Right Operator.
~ Operator.
& Address of Operator (Unary).
? Operator.
: Operator.
. Operator (structure member).
-> Operator (structure pointer).
... in function declarations.
, Comma Operator.

#
#include preprocessor #define preprocessor #if preprocessor #ifdef preprocessor #ifndef preprocessor #line preprocessor	#undef preprocessor #pragma preprocessor #else preprocessor #error preprocessor #elif preprocessor #endif preprocessor

A
abort a program. abs function. Aboslute value of an integer. acos function. AND Operator. ANSI Standard headers. Archive libraries. ARGC and ARGV[]. Arithmetic Operators Arrays Arrarys of Structures. Array sorting Assignment Operators Ascii table.	asctime function asin function. assert function. Assignment Constructors C++ class atan function. atan function. atexit Execute the named function when the program terminates. atof atoi Accepts +-0123456789 leading blanks and converts to integer. atol Audible Alert \a auto keyword.

B
Backspace \b Base conversion. basename strip directory information from a file name. Bell \a Binary formating problem. Bits. Bitwise Operators	Book list. boolean. bool datatype (C++). break keyword. bsearch function. Bytes.

Carriage Return \r
case keyword.
cast
ceil function.
Change working directory.
close function.
closedir function.
%c Character formatting (printf, scanf etc)
char keyword.
Character arrays
Character Constants.
Character I/P & O/P in files.
chdir function.
class C++ keyword
class Inheritance(C++)
class keyword (C++)
clock function.
clrscr Clear screen
clrscr Program to clear the screen using VT escape sequence.
Coding idioms.
Comma operator.
Command line arguments.

C Comments.
Comments in C++.
Comman coding errors.
Compare strings.
Compare strings ignoring case.
Compilers.
Compiler Error messages (GCC).
Completion codes.
Concatenate strings.
const keyword.
const keyword. In classes
Constants.
constructors C++ class
continue keyword.
Conversion table between ASCII Binary, Decimal, Hex
Convert Unix file to DOS format.
Convert Unix path names to DOS path names..
Copy Constructors C++ class
Copy strings.
Copy a file.
Create Environmental variables.
ctime function

D
Data types. Data type conversion. Date functions. %d Decimal formatting (printf, scanf etc) Declaration Debugging Decimal Ascii table. Decrementing. Default Constructors C++ class Default Parameter values. (C++) default keyword. #define Preprocessor Definition	delete C++. Destructors C++ class difftime function. Directory access functions. Directory information stipped from a file name. do keyword. Domain name. double keyword. Download the source. dup duplicate a file descriptor. dup2 duplicate a file descriptor. dynamically allocate memory. dynamic libraries.

E
%e formatting (printf, scanf etc) #elif preprocessor #else preprocessor else keyword. #edif preprocessor endpwent function. enum keyword. enum. C++ changes. environ example. errno.h ANSI header. #error preprocessor escape codes. Environmental variables. Evaluation of operators.	Example programs. execl function. execlp function. execle function. exect function. execv function. execvp function. exit function. Expressions. extern keyword.

File descriptor
%f formatting (printf, scanf etc)
fabs function.
FALSE.
fclose Close a file.
feof Check for EOF while reading a file.
fgetc Read a character from a file.
fgetpwent function.
fgets
field width. (printf, scanf etc)
File status, permissions, ownership etc.
Float arrays
float keyword.
float.h ANSI header.
Floating point Constants.
floor function.
fopen Open a file

format flags. (printf, scanf etc)
fork a child process.
Formfeed \f Read a record from a file (safer than fgetc).
for keyword
formatting (printf, scanf etc)
fprintf O/P a line of data to a file.
fputc Write a character to a file.
friend C++ keyword.
free function to release memory allocated with malloc.
fputs Write a string to a file.
fstat File status, permissions, ownership etc.
functions writing.
functions ANSI library.
Function Overloading. (C++)
Functions (pointers to).
Functions (static).
static functions in C++.

%g formatting (printf, scanf etc)
GDB debugger
getenv Get an environmental variable.
getchar Get a character from the keyboard (STDIN).
getc Get a character from an input stream.
getch function.
getche function.
geteuid function. Get a Users effective ID.
gethostname function. Get the name of this host!
getopt function. Parse the command line.
getpid function. Get the process id.
getppid function. Get the parent process id.
getpw function.

getpwent function.
getpwnam Get a record from /etc/passwd by keying on the user name.
getpwuid Get a record from /etc/passwd by keying on the UID.
gets function. Get string (from keyboard).
getuid function. Get a Users real ID.
Global variables.
Glossary (C)
Glossary (C++)
gmtime function
goto keyword.
Got Ya! Comman coding errors.
GREP command for DOS users.
Group ID.

H
Headers (standard). Hex base conversion. Hex dump program. Hex table. Hex Character constant \x	Hex formatting (printf, scanf etc) Horizontal tab \t Host name via the uname function. Host name via the gethostname function.

%i Decimal formatting (printf, scanf etc)
Idioms.
Incrementing.
#include Preprocessor
#if preprocessor
#ifdef preprocessor
#ifndef preprocessor
if keyword.
index Search for a character in a string.
inline C++ keyword.
Inheritance (C++)
input from the keyboard
int keyword.
Integer arrays
Integer Constants.
integer formatting.
I/O.
input from the keyboard
int keyword.

Integer arrays
Integer Constants.
integer formatting.
I/O.
isalnum Checks whether a character is alphanumeric (A-Z, a-z, 0-9)
iscntrl Checks whether a character is a control character or delete ( decimal 0-31 and 127)
isdigit Checks whether a character is a digit (0-9)
isgraph Checks whether a character is a printable character, excluding the space (decimal 32)
islower Checks whether a character is a lower case letter (a-z).
isprint Checks whether a character is printable (decimal 32-126).
ispunct Checks whether a character is punctuation (decimal 32-47, 58-63, 91-96, 123-126)
isspace Checks whether a character is white space - space, CR HT VT NL, FF.
isupper Checks whether a character is an upper case letter (A-Z).
isxdigit Checks whether a character is hex digit (0-9, A-F, a-f).

J

K
keyboard input. Keywords.	Keywords added to C++ kill a process.

L
labs function. libraries (user) limits.h ANSI header. #line preprocessor Linked lists locale.h ANSI header. Local variables. localtime function.	Logical AND Operator. Logical OR Operator. long keyword. setjmp.h ANSI header. Love Tim Love's C programming documentation. Low level I/O. Lowercase to uppercase character conversion. lstat function. Get file status, permissions, ownership etc.

M
Macros Machine type. malloc function to dynamically allocate memory. math.h. member of a structure. memchr function. memcmp function. memcpy function.	memove function. memset function. mkdir function. mktime function. Mirror sites. modulo. Modifiers.

N
%n formatting (printf, scanf etc) namespace C++ keyword. new C++. Newline \n NOT Operator.	Null. Number base conversion. Number base converter. Nutshell book examples.

O
%o Octal formatting (printf, scanf etc) \o Octal Character constant open function. opendir function. operator C++ keyword. Operators	Operator Precedence. Operand definition. OR Operator. O'Reilly books. Overloading Functions. (C++)

%p formatting (printf, scanf etc)
password functions.
pclose Close a pipe.
perl in C code.
pipe function.
Pointers
Pointers to arrays.
Pointers to functions.
Pointers to pointers.
Pointers to Strings.
Pointers to structures.
pointer (void).
popen Open a pipe.
pow raise a number by a given power.
Practical C (O'Reilly) examples.

#pragma preprocessor
Precedence of operators.
Preprocessor instructions
printenv program.
printf O/P data to the screen or a file.
Problems for you to solve.
Process ID.
Process - is a PID active?
Program examples.
Program name.
putc(int c, FILE *stream) Write c to FILE and return it.
putchar(int c). Write character to STDOUT.
putenv Create an environmental variable.
puts(char *s) Write string to STDOUT.

Q
qsort qsort O'Reilly 'Using C' example.

R
\r Carriage Return rand function. random numbers. RAND_MAX numbers. read function. readdir function. Read data from a file. Reference Variables (C++). register keyword. Relational Operators	Remote Procedure Calls rename function. Rename a file. Return code. return keyword. reverse Program to reverse characters in a string. rewinddir function. rint function. rmdir function. RPC Remote Procedure CAlls

S_ISLNK Is this a link.
S_ISREG Is this a regular file.
S_ISDIR Is this a directory
S_ISCHR
S_ISBLK
S_ISFIFO
S_ISSOCK
%s String formatting (printf, scanf etc)
scandir function.
scanf
scope.
seekdir function.
setenv Create an environmental variable.
setjmp.h ANSI header.
setpwent function.
setuid function.
short keyword.
signal.h ANSI header.
signed keyword.
sizeof. Return the storage allocation for a data type.
sleep function. Pause for the specified number of seconds.
sort an array.
sprintf O/P data in tha same way as 'printf' but put it into a string.
sqrt Square root of a number.
srand function.
sscanf function.
Standard C++ Library
Standard headers.
Standard headers.
stat function. Get file status, permissions, ownership etc.
statfs function. Get filesystem status, free blocks, block size etc.
static keyword.
static in C++.
static libraries.
stdarg.h ANSI header.
stddef.h ANSI header.
STDERR
STDIN

stdlib.h.
STDOUT
Storage clase.
strcat function. Concatenate strings.
strcasecmp Compare strings ignoring case.
strchr Search for a character in a string.
strcmp Compare strings.
strcoll function. Compare two strings.
strcpy Move strings.
strcspn function. Search a string for a set of characters.
strftime function.
String Constants.
String pointers.
String formating.
strlen
strncat function. Concatenate strings.
strncmp Compare strings.
strncpy Copy N bytes from one string to another.
strpbrk function
strrchr Search for a character in a string.
strrchr function.
strspn function.
strstr function. Search a string for a substring.
strtok function. The books say this function splits a string into tokens. I think its function is best described as parsing a string.
strtol Convert String to a long integer.
struct keyword.
Structure arrays.
Structure basics.
Structure membership.
Structure pointers.
strxfrm function.
swap two values.
switch keyword.
Syntax.
system Issue a system command.
system calls.
system information.

T
\t Horizontal tab telldir function. threads. time functions. time.h header. tolower function. Convert an uppercase character to lowercase.	toupper function. Converts a lowercase character to uppercase. TRUE. Tutorials on the net. Data type conversion. typedef keyword.

U
%u formatting. uname function. #undef preprocessor union keyword. unistd header. Unix to DOS file conversion. unlink function, delete a file.	unsetenv function. Remove an environmental variable. unsigned keyword. unsigned integer formatting. Uppercase to lowercase character conversion. Users /etc/passwd entry. Using C (O'Reilly) examples.

V
va_arg va_end va_list va_start Variables. Variable definition. Variable function parameter lists Variables - Reference(C++).	Vertical tab \v vfprintf. Print a va_list to a file. vprintf. Print a va_list vsprintf. O/P a va_list into a string. void keyword. void *(void pointer). volatile keyword.

W
Width of a field. (printf, scanf etc) while keyword. Why use pointers?.	write function. Write data to a file.

X
\x Hex Character constant %x Hex formatting (printf, scanf etc)	X program examples.

Y

Z

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Master Index

Keywords

Functions

Martin Leslie

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