C Language

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What is the use of getw () and putw () functions rekha	12-07-2009 11:36 PM by sak4nam	1	329
Where can I get extra copies of this list? What about back issues rekha	12-27-2008 03:28 PM by rekha	0	78
When will the next International Obfuscated C Code Contest (IOCCC) be held rekha	12-27-2008 03:27 PM by rekha	0	53
Here's a good puzzle: how do you write a program which produces its own source code rekha	12-27-2008 03:26 PM by rekha	0	42
Will 2000 be a leap year? Is (year % 4 == 0) an accurate test for leap years rekha	12-27-2008 03:25 PM by rekha	0	48
Is C++ a super set of C? Can I use a C++ compiler to compile C code rekha	12-27-2008 03:24 PM by rekha	0	48
Does anyone know of a program for converting Pascal or FORTRAN (or LISP, Ada, awk, rekha	12-27-2008 03:24 PM by rekha	0	26
Why don't C comments nest? How am I supposed to comment out code containing comments rekha	12-27-2008 03:22 PM by rekha	0	42
Is there a way to have non-constant case labels (i.e. ranges or arbitrary expressions rekha	12-27-2008 03:21 PM by rekha	0	40
What is the most efficient way to count the number of bits which are set in a value rekha	12-27-2008 03:19 PM by rekha	0	49
Can I use base-2 constants (something like 0b101010)? Is there a printf() format for rekha	12-27-2008 03:19 PM by rekha	0	30
If I have a char * variable pointing to the name of a function,how can I call that rekha	12-27-2008 03:17 PM by rekha	0	24
How can I write data files which can be read on other machines with different word rekha	12-27-2008 03:17 PM by rekha	0	23
How do I use BIOS calls? How can I write ISR's? How can I create TSR rekha	12-27-2008 03:15 PM by rekha	0	24
How can I read in an object file and jump to routines in it rekha	12-27-2008 03:13 PM by rekha	0	32
How can I invoke another program or command and trap its output rekha	12-27-2008 03:11 PM by rekha	0	25
How can I invoke another program (a standalone executable, or an operating system rekha	12-27-2008 03:11 PM by rekha	0	24
What does the error message "DGROUP data allocation exceeds 64K" mean, and what can rekha	12-27-2008 03:11 PM by rekha	0	29
How can I access memory (a memory-mapped device, or graphics memory) located at rekha	12-27-2008 03:07 PM by rekha	0	27
I'm getting an error, "Too many open files". How can I increase the allowable number rekha	12-27-2008 03:04 PM by rekha	0	22
Why can't I open a file by its explicit path rekha	12-27-2008 03:04 PM by rekha	0	25
How can I recover the file name given an open stream or file descriptor rekha	12-27-2008 03:03 PM by rekha	0	21
How can I find the modification date and time of a file rekha	12-27-2008 03:01 PM by rekha	0	27
How can I check whether a file exists? I want to warn the user if a requested input rekha	12-27-2008 03:01 PM by rekha	0	30
How can I do graphics rekha	12-27-2008 03:00 PM by rekha	0	26
How can I direct output to the printer rekha	12-27-2008 02:59 PM by rekha	0	22
How can I move the cursor to a specific x, y position rekha	12-27-2008 02:58 PM by rekha	0	21
How can I print things in inverse video rekha	12-27-2008 02:58 PM by rekha	0	21
How can I find out if there are characters available for reading rekha	12-27-2008 02:57 PM by rekha	0	20
Where and how can I get copies of all these freely distributable programs rekha	12-27-2008 02:54 PM by rekha	0	19
How can I track down these pesky malloc problems rekha	12-27-2008 01:24 PM by rekha	0	19
Some people say that goto's are evil and that I should never use them. Isn't that rekha	12-27-2008 01:23 PM by rekha	0	19
What code need to do regular expression and wild card matching rekha	12-27-2008 01:19 PM by rekha	0	22
How can I read a binary data file properly? I'm occasionally seeing 0x0a and 0x0d rekha	12-27-2008 01:17 PM by rekha	0	26
How can I implement a variable field width with print f? That is, instead of %8d rekha	12-27-2008 01:16 PM by rekha	0	24
How do I access command-line arguments rekha	12-27-2008 01:11 PM by rekha	0	22
Where can I get the "Indian Hill Style Guide" and other coding standards? rekha	12-27-2008 01:07 PM by rekha	0	22
What is "Hungarian Notation"? Is it worthwhile rekha	12-27-2008 01:05 PM by rekha	0	18
How can I duplicate the process by which main() is handed argc and argv rekha	12-27-2008 01:01 PM by rekha	0	23
How can I split up a string into whitespace-separated fields rekha	12-27-2008 01:00 PM by rekha	0	28
I came across some code that puts a (void) cast before each callto print f(). Why rekha	12-27-2008 12:50 PM by rekha	0	28
Why do some people write if(0 == x) instead of if(x == 0) rekha	12-27-2008 12:49 PM by rekha	0	19
Here's a neat trick for checking whether two strings are equal rekha	12-27-2008 12:49 PM by rekha	0	21
What's the best style for code layout in C rekha	12-27-2008 12:47 PM by rekha	0	30
What do "Segmentation violation" and "Bus error" mean rekha	12-27-2008 12:46 PM by rekha	0	19
Why does this code: char *p = "hello, world!";p[0] = 'H'; crash? rekha	12-27-2008 12:46 PM by rekha	0	29
I have a program that seems to run correctly, but it crashes as it's exiting, after rekha	12-27-2008 12:45 PM by rekha	0	21
Why isn't my procedure call working? The compiler seems to skip right over it rekha	12-27-2008 12:44 PM by rekha	0	34
I have a varargs function which accepts a float parameter. Why isn't rekha	12-27-2008 12:41 PM by rekha	0	32
How can I write a function analogous to scan f(), that calls scan f() to do most of rekha	12-27-2008 12:39 PM by rekha	0	23
How can %f be used for both float and double arguments in print f()? Aren't they rekha	12-27-2008 12:37 PM by rekha	0	23
What's a good way to implement complex numbers in C rekha	12-27-2008 12:35 PM by rekha	0	35
Why doesn't C have an exponentiation operator rekha	12-27-2008 12:34 PM by rekha	0	30
When I set a float variable to, say, 3.1, why is print f() printing it as 3.0999999 rekha	12-27-2008 12:33 PM by rekha	0	26
I know that the library routine local time() will convert a time_t into a broken-down rekha	12-27-2008 12:30 PM by rekha	0	33
How can I add N days to a date? How can I find the difference between two dates rekha	12-27-2008 12:26 PM by rekha	0	21
Now I'm trying to sort an array of structures with q sort(). My comparison function rekha	12-27-2008 12:21 PM by rekha	0	20
Why does some code call is lower() before to upper() rekha	12-27-2008 12:16 PM by rekha	0	21
Why does strncpy() not always place a '\0' terminator in the destination string rekha	12-27-2008 12:12 PM by rekha	0	27
How can I convert numbers to strings (the opposite of atoi)? Is there an itoa rekha	12-27-2008 12:11 PM by rekha	0	49
Once I've used freopen(), how can I get the original std out (or stdin) back rekha	12-27-2008 12:09 PM by rekha	0	17
How can I redirect std in or std out to a file from within a program rekha	12-27-2008 12:08 PM by rekha	0	16
How can I flush pending input so that a user's type ahead isn't read at the next rekha	12-27-2008 12:07 PM by rekha	0	20
What's the difference between fgetpos/fsetpos and ftell/fseek? What are fgetpos() rekha	12-27-2008 12:06 PM by rekha	0	47
Why does errno contain ENOTTY after a call to print f() rekha	12-27-2008 12:05 PM by rekha	0	20
How can I tell how much destination buffer space I'll need for an arbitrary sprint f rekha	12-27-2008 12:02 PM by rekha	0	17
Why does everyone say not to use scan f()? What should I use instead rekha	12-27-2008 12:01 PM by rekha	0	21
How can I specify a variable width in a scan f() format string rekha	12-27-2008 12:00 PM by rekha	0	17
Why doesn't this code double d; scanf("%f", &d); work rekha	12-27-2008 11:59 AM by rekha	0	29
How can I print numbers with commas separating the thousands? What about currency for rekha	12-27-2008 11:57 AM by rekha	0	21
Someone told me it was wrong to use %lf with print f(). How can printf() use %f for rekha	12-27-2008 11:56 AM by rekha	0	21
How can I print a '%' character in a print f format string? I tried \%, but it didn' rekha	12-27-2008 11:54 AM by rekha	0	22
I'm appalled that the ANSI Standard leaves so many issues undefined. Isn't a rekha	12-27-2008 11:53 AM by rekha	0	20
Why won't the Frobozz Magic C Compiler, which claims to be ANSI compliant rekha	12-27-2008 11:52 AM by rekha	0	19
I don't understand why I can't use const values in initializes and array dimensions rekha	12-27-2008 11:50 AM by rekha	0	22
My ANSI compiler complains about a mismatch when it sees extern int func(float) rekha	12-27-2008 11:48 AM by rekha	0	21
Why is the macro #define TRACE(n) printf("TRACE: %d\n", n) rekha	12-27-2008 11:46 AM by rekha	0	21
People seem to make a point of distinguishing between implementation-defined rekha	12-27-2008 11:39 AM by rekha	0	21
Does anyone have a tool for converting old-style C programs to ANSI C, or vice versa rekha	12-27-2008 10:55 AM by rekha	0	26
Why are some ANSI/ISO Standard library routines showing up as undefined, even though rekha	12-27-2008 10:54 AM by rekha	0	33
What should malloc(0) do? Return a null pointer or a pointer to 0 bytes rekha	12-27-2008 10:53 AM by rekha	0	21
Is char a[3] = "abc"; legal? What does it mean rekha	12-27-2008 10:52 AM by rekha	0	24
What does "#pragma once" mean? I found it in some header files rekha	12-27-2008 10:51 AM by rekha	0	30
What are #pragmas and what are they good for rekha	12-27-2008 10:50 AM by rekha	0	24
Can I declare main() as void, to shut off these annoying "main returns no value" rekha	12-27-2008 10:48 AM by rekha	0	28
What's the difference between "const char p" and "char const p" rekha	12-27-2008 10:47 AM by rekha	0	92
Why does the declaration extern f(struct x *p); Give me an obscure warning message rekha	12-27-2008 10:46 AM by rekha	0	29
Here's a neat trick: if I write int real array[10]; int *array = &real array[-1]; rekha	12-27-2008 10:38 AM by rekha	0	24
I inherited some code which contains far too many #ifdef's for my taste. How can I rekha	12-27-2008 10:35 AM by rekha	0	22
Here are some cute preprocessor macros: #define begin { #define end } What do y'al rekha	12-27-2008 10:32 AM by rekha	0	25
If I can say char a[] = "Hello, world!"; why can't I say rekha	12-27-2008 10:30 AM by rekha	0	19
I'm checking a string to see if it matches a particular value.Why isn't this code wor rekha	12-27-2008 10:29 AM by rekha	0	21
Why doesn't strcat(string, '!'); work rekha	12-27-2008 10:27 AM by rekha	0	18
Why does the declaration extern f(struct x *p) rekha	12-26-2008 03:57 PM by rekha	0	16
Where can I get information about updates to the Standard rekha	12-26-2008 03:55 PM by rekha	0	15
How can I list all of the pre#defined identifiers rekha	12-26-2008 03:53 PM by rekha	0	24
How can I use a preprocessor #if expression to tell if a machine is big-endian or rekha	12-26-2008 03:53 PM by rekha	0	21
Is there anything like an #if def for typedefs rekha	12-26-2008 03:52 PM by rekha	0	24
Does the size of operator work in preprocessor #if directives rekha	12-26-2008 03:51 PM by rekha	0	25
I seem to be missing the system header file <sgtty.h>. Can someone send me a copy rekha	12-26-2008 03:47 PM by rekha	0	27
Where are header ("#include") files searched for rekha	12-26-2008 03:47 PM by rekha	0	24
Is if(p), where p is a pointer, a valid conditional rekha	12-26-2008 03:45 PM by rekha	0	21
Isn't #defining TRUE to be 1 dangerous, since any nonzero value is considered "true" rekha	12-26-2008 03:45 PM by rekha	0	21
What is the right type to use for Boolean values in C? Why isn't it a standard type rekha	12-26-2008 03:45 PM by rekha	0	23
How can I get the numeric (character set) value corresponding to a character, or vice rekha	12-26-2008 03:44 PM by rekha	0	30
What's the difference between calloc() and malloc()? Is it safe to take advantage of rekha	12-26-2008 03:41 PM by rekha	0	24
Is it legal to pass a null pointer as the first argument to realloc()? Why would you rekha	12-26-2008 03:40 PM by rekha	0	19
I'm allocating structures which contain pointers to other dynamically-allocated rekha	12-26-2008 03:37 PM by rekha	0	18
Why isn't a pointer null after calling free()? How unsafe is it to use (assign rekha	12-26-2008 03:36 PM by rekha	0	32
I see code like rekha	12-26-2008 02:08 PM by rekha	0	25
Why doesn't size of properly report the size of an array when the array is a paramete rekha	12-26-2008 02:03 PM by rekha	0	24
How do I write functions which accept two-dimensional arrays when the "width" is not rekha	12-26-2008 02:01 PM by rekha	0	22
Is that char a[] was identical to char *a rekha	12-26-2008 02:00 PM by rekha	0	21
How can I dynamically allocate a multidimensional array rekha	12-26-2008 01:56 PM by rekha	0	27
How can I avoid fixed-sized arrays rekha	12-26-2008 01:55 PM by rekha	0	28
Since array references decay into pointers, if arr is an array, what's the difference rekha	12-26-2008 01:53 PM by rekha	0	21
I came across some "joke" code containing the "expression" 5["abcdef"] .How can this rekha	12-26-2008 01:47 PM by rekha	0	19
Practically speaking, what is the difference between arrays and pointers rekha	12-26-2008 01:45 PM by rekha	0	23
Then why are array and pointer declarations interchangeable as function formal rekha	12-26-2008 01:45 PM by rekha	0	22
So what is meant by the "equivalence of pointers and arrays" in C rekha	12-26-2008 01:44 PM by rekha	0	19
What does a run-time "null pointer assignment" error mean? How do I track it down rekha	12-26-2008 01:43 PM by rekha	0	28
Seriously, have any actual machines really used nonzero null pointers, or different rekha	12-26-2008 01:42 PM by rekha	0	19
Why is there so much confusion surrounding null pointers? Why do these questions rekha	12-26-2008 01:41 PM by rekha	0	19
This is strange. NULL is guaranteed to be 0, but the null pointer is not rekha	12-26-2008 01:40 PM by rekha	0	17
But wouldn't it be better to use NULL (rather than 0), in case the value of NULL rekha	12-26-2008 01:39 PM by rekha	0	18
If NULL were defined as follows: #define NULL ((char *)0) wouldn't that make fun rekha	12-26-2008 01:36 PM by rekha	0	21
How should NULL be defined on a machine which uses a nonzero bit pattern as rekha	12-26-2008 01:34 PM by rekha	0	24
I have a function extern int f(int *); which accepts a pointer to an int. How can rekha	12-26-2008 01:32 PM by rekha	0	20
I've seen different methods used for calling functions via pointers. What's the rekha	12-26-2008 01:29 PM by rekha	0	26
How can I understand these complex expressions? What's a "sequence point" rekha	12-26-2008 01:05 PM by rekha	0	47
I've experimented with the code rekha	12-26-2008 01:04 PM by rekha	0	17
Can I use explicit parentheses to force the order of evaluation I want? Even if I rekha	12-26-2008 12:59 PM by rekha	0	22
Why doesn't this code work rekha	12-26-2008 12:58 PM by rekha	0	17
What is the difference between an enumeration and a set of preprocessor #defines rekha	12-26-2008 12:56 PM by rekha	0	17
How can I determine the byte offset of a field within a structure rekha	12-26-2008 12:55 PM by rekha	0	19
This program works correctly, but it dumps core after it finishes.Why rekha	12-26-2008 12:55 PM by rekha	0	27
Why does size of report a larger size than I expect for a structure type, as if there rekha	12-26-2008 12:51 PM by rekha	0	28
My compiler is leaving holes in structures, which is wasting space and preventing rekha	12-26-2008 12:50 PM by rekha	0	28
How can I pass constant values to functions which accept structure arguments rekha	12-26-2008 12:48 PM by rekha	0	31
How are structure passing and returning implemented rekha	12-26-2008 12:48 PM by rekha	0	20
Why can't you compare structures rekha	12-26-2008 12:47 PM by rekha	0	17
I came across some code that declared a structure like this rekha	12-26-2008 12:46 PM by rekha	0	21
I can't seem to define a linked list successfully. I tried type def struct rekha	12-26-2008 12:42 PM by rekha	0	31
How can I declare a function that can return a pointer to a function of the same type rekha	12-26-2008 12:42 PM by rekha	0	59
Why doesn't work rekha	12-26-2008 12:41 PM by rekha	0	20
What's the difference between these two declarations rekha	12-26-2008 12:38 PM by rekha	0	21
What is the difference between these initializations rekha	12-26-2008 12:37 PM by rekha	0	23
What's wrong with this initialization rekha	12-26-2008 12:37 PM by rekha	0	21
I finally figured out the syntax for declaring pointers to functions, but now how do rekha	12-26-2008 12:35 PM by rekha	0	22
This code, straight out of a book, isn't compiling rekha	12-26-2008 12:35 PM by rekha	0	19
What can I safely assume about the initial values of variables which are not rekha	12-26-2008 12:32 PM by rekha	0	21
What should the 64-bit type on new, 64-bit machines be rekha	12-26-2008 12:13 PM by rekha	0	23
What does header file <stdlib.h> consist of rekha	12-23-2008 05:07 PM by rekha	0	33
What is the difference between "char const p" and "char const p" rekha	12-23-2008 05:06 PM by rekha	0	31
Is this statement correct? scan f (“%s”, &string); rekha	12-23-2008 05:05 PM by rekha	0	30
What are the different types of errors encountered with a program rekha	12-23-2008 05:01 PM by rekha	0	31
Which operator is used to concatenate two strings rekha	12-23-2008 04:58 PM by rekha	0	27
What is the use of “#” rekha	12-23-2008 04:58 PM by rekha	0	23
What is the directive used to discord a macro rekha	12-23-2008 04:50 PM by rekha	0	26
Write the syntax for pragma directive rekha	12-23-2008 04:50 PM by rekha	0	21
What is the difference between #include<xyz.h> & #include “abc.h” rekha	12-23-2008 04:48 PM by rekha	0	17
Give examples for different macro substitutions rekha	12-23-2008 04:45 PM by rekha	0	18
What is macro substitution rekha	12-23-2008 04:43 PM by rekha	0	27
What are the different categories of preprocessor directives rekha	12-23-2008 04:42 PM by rekha	0	17
List few preprocessor directives rekha	12-23-2008 04:41 PM by rekha	0	24
What do you mean by preprocessor rekha	12-23-2008 04:40 PM by rekha	0	16
What is alloca () and why is its use discouraged rekha	12-23-2008 04:39 PM by rekha	0	13
What is the use of realloc () rekha	12-23-2008 04:37 PM by rekha	0	20
What is the use of free () rekha	12-23-2008 04:36 PM by rekha	0	17
How do you identify whether calloc is successful or not rekha	12-23-2008 04:36 PM by rekha	0	18
Write the syntax for calloc () rekha	12-23-2008 04:35 PM by rekha	0	20
What is the use of calloc () rekha	12-23-2008 04:34 PM by rekha	0	18
Write the syntax for malloc () with an example rekha	12-23-2008 04:34 PM by rekha	0	19
What is the use of malloc () rekha	12-23-2008 04:33 PM by rekha	0	18
What is heap rekha	12-23-2008 04:33 PM by rekha	0	19
List the memory management functions rekha	12-23-2008 04:26 PM by rekha	0	26
What is the use of ferror () rekha	12-23-2008 04:24 PM by rekha	0	14
What is the disadvantage of using ‘w’ mode in file operation rekha	12-23-2008 04:23 PM by rekha	0	24
How can you identify whether f seek () is successful or not rekha	12-23-2008 04:23 PM by rekha	0	18
Write the syntax for fseek () rekha	12-23-2008 04:22 PM by rekha	0	22
What is the use of f seek () rekha	12-23-2008 04:22 PM by rekha	0	19
Write the syntax for rewind () rekha	12-23-2008 04:22 PM by rekha	0	20
Write the syntax for f tell () rekha	12-23-2008 04:21 PM by rekha	0	22
What is the use of rewind () rekha	12-23-2008 04:21 PM by rekha	0	16
List some I/O functions for handling files rekha	12-23-2008 04:14 PM by rekha	0	35
How can you identify whether a file is opened successfully or not rekha	12-23-2008 04:12 PM by rekha	0	17
What does fopen () return when a file is opened rekha	12-23-2008 04:11 PM by rekha	0	22
List out the possible errors during file I/O operations rekha	12-23-2008 04:10 PM by rekha	0	36
Write the syntax for f scan f () and f print f () rekha	12-23-2008 04:09 PM by rekha	0	17
What is the use of f print f () and f scan f () functions rekha	12-23-2008 04:01 PM by rekha	0	18
Write the syntax for getc () and putc () functions rekha	12-23-2008 03:58 PM by rekha	0	33
What is EOF rekha	12-23-2008 03:57 PM by rekha	0	16
What is the use of getc() and putc () functions rekha	12-23-2008 03:56 PM by rekha	0	19
What are the files which are automatically opened when a “C” file is executed rekha	12-23-2008 03:56 PM by rekha	0	33
Why should we close a file once it is opened rekha	12-23-2008 03:55 PM by rekha	0	20
Write the syntax for closing a file rekha	12-23-2008 03:55 PM by rekha	0	25
What are the additional modes of file operation rekha	12-23-2008 03:54 PM by rekha	0	21
What are the different file modes rekha	12-23-2008 03:54 PM by rekha	0	17
Write the syntax for opening a file rekha	12-23-2008 03:53 PM by rekha	0	20
Write the syntax for declaring a file rekha	12-23-2008 03:53 PM by rekha	0	29

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