jgk1's articles:

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size test 2 28 (4/25/2012 11:34:13 PM) comp.lang.c I have macros: #define MAKE_SIZE_CLASS (X, Y, CLS) ((CLS) = ((X) & 0xF > 4 & 0xF, (Y) = (CLS) & 0x3) with this: #define CLASS_SIZE(X, Y) \ ((0x4 | (Y) & 0x3) << (X)) How do i get an inverse of CLASS_SIZE. ... jgk

ffs16 19 20 (4/22/2012 9:36:30 PM) comp.lang.c case A int ffs16a(int x) { int res; if ((x & 0xFF) == 0) res = kk_ffstab[x & 0xFF]; else res = kk_ffstab[x >> 8 & 0xFF] + 8; return res; } case B int ffs16b(int x) { int r... jgk

double hashing 3 40 (4/2/2012 7:49:06 PM) comp.programming question We some have 'docs' that can be 'contracted' or 'expanded'. They sometimes change from contracted to expanded and vice versa. They each have a 'key' that's unique [and doesn't change when they chang... jgk

things i would ban from clc 83 38 (3/11/2012 11:05:45 PM) comp.lang.c 1. it's not twos' complement 2. an 'int' may have a trap value -who- -cares- go have sex with youselves ... jgk

i think i found 18 22 (3/10/2012 1:09:33 AM) comp.lang.c How about this? int f(int x) { int a[2]; int *p; p = &a[0]; *p = 2; ++p; *p = 3; /* printf("%d %d\n", a[0], a[1]); */ } That pretty much has to work, right? So what's the deal with arrays... jgk

malloc #2 56 31 (2/16/2012 9:04:36 PM) comp.lang.c++ Bugs of memory allocation will make you mad. Bugs *in* memory allocation will put you in the cuckoo people place. ... jgk

question #22 9 31 (1/12/2012 4:53:50 AM) comp.lang.c What is the greatest set of four primes ssuch that they ae all <2^64? ... jgk

the loop control 49 31 (10/29/2011 9:38:28 PM) comp.lang.c Which is better? int fa(int fool, struct foo *foob) { int ct; struct foo *foop; ... ct = fool; foop = foob; while (--ct >= 0) { ...(foop) foop++; } ... } int fb(int f... jgk

jgk1's replies:

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working with big numbers 26 56 (5/13/2012 3:42:42 PM) comp.lang.c Dear Friends, i need to know how to calculate big numbers i.e. factorial of 100. i google and found a solution but didn`t understand how it is done.and some others solution is using some library .but i actual... ashishmourya21 (34)

Will 'free' return the memory Immediately to the OS ? 26 36 (5/15/2012 9:34:57 PM) comp.lang.c As per subject-line, thank-you ... raj121190 (27)

Idiomatic module encapsulation 10 31 (5/22/2012 9:18:49 AM) comp.lang.c Hello everyone, I'm implementing a wrapper around platform-dependent "primitives", and I'm trying to have 0 platform-dependent code (even includes) in the "module" interface header. For example, consider this... Noob

Error returns and repeated code, GOTOs, etc. 140 47 (5/30/2012 5:44:06 AM) comp.lang.c Hi. I've got some stuff that looks like this: --- ErrorCode MyFunc() { BigNum a, b, c, d; ErrorCode rv; rv = BigNum_Initialize(&a); if(rv != ERROR_SUCCESS) ... mike4ty4 (405)

Decomposing a FLOAT 26 41 (5/31/2012 8:59:58 PM) comp.lang.c Hello If I have a FLOAT variable how to retrieve its exponent and mantissa in the most portable way. Cheers Raj ... raj121190 (27)

Array sizes and const 50 26 (6/2/2012 8:43:40 PM) comp.lang.c I am using Mingw 3.4.5 on a 'Doze box, but it pretty much follows any Gnu compiler I've run into. Why is this: --------------------------- #define SIZE 20 const int size = SIZE; char array[SIZE]; -... lcargill991 (440)

Quasi 0 21 35 (6/4/2012 9:32:06 AM) comp.lang.c Hi friends: Machine epsilon is the maximum relative error of the chosen rounding procedure #include #include #include int main(void) { double a = 0.1; double b = 0.1; a += 1.0; a -= ... davranfor (97)

Sorry for interrupt,because my mother language is not English,it may be a little confused to read the c programming language. 6 34 (6/12/2012 6:47:42 AM) comp.lang.c charpter6 6.1 basic "The tag names this kind of structure, and can be used subsequently as a shorthand for the part of the declaration in braces. " I don't understand it well. I refer to some native l... zhabgyuan1993 (35)

dequeue() not working 10 46 (6/21/2012 7:11:27 AM) comp.lang.c WANTED: to dequeue an element from Queue. GOT: nothing happening /* A queue implementation with the operations that I need: * (1) Add an element to the front (head) of the queue * (2) Remove an elemen... sunrise2 (598)

Wrapping existing UNIX commands in C 99 56 (7/29/2012 3:11:18 PM) comp.lang.c Hi, So I am aware of the exec family of functions and the system function to execute external commands but they do not seem to offer the functionality to allow me to get the output of said executable so ... chicken (50)