int aNumber; aNumber = aValue / 2; aNumber = aValue >> 1; aNumber = aValue * 2; aNumber = aValue << 1; aNumber = aValue / 4; aNumber = aValue >> 2; aNumber = aValue * 8; aNumber = aValue << 3; // etc. Whats is the "best" way to do operations? When is better to use bit shifting? ...
[Edit1:] For the seqName, I declare it as a global parameter at the beginning of the file as char seqName[20]; [Edit2:] Aren't those number of passing to the program during the actual execution? I got the following message just by using the valgrind tool. The command I input is: jl@ubuntu:~/work/dsr_analysis$ valgrind --tool=memchec...
hello i have problem with receiving data from serial port in c# in am inserting a new line operator at the end of data buffer. then i send this data buffer on serial port, after this my c# GUI receiver will take this data via Readline() function but it always give me raw data not the actual one how to resolve this problem. //configuring...
Converting a C++ lib to ANSI C and it seems like though ANSI C doesn't support default values for function variables or am I mistaken? What I want is something like int funcName(int foo, bar* = NULL); Also, is function overloading possible in ANSI C? Would need const char* foo_property(foo_t* /* this */, int /* property_number*/); ...
I write two pieces of c programs like following, during memcheck process using Valgrind, a lot of mem leak information is given. int GetMemory(int framewidth, int frameheight, int SR/*, int blocksize*//*,int ALL_REF_NUM*/) { //int i,j; int memory_size = 0; //int refnum = ALL_REF_NUM; int input_search_...
Hi All, Wanting to see the output of the compiler (in assembly) for some C code, I wrote a simple program in C and generated its assembly file using gcc. The code is this: #include <stdio.h> int main() { int i = 0; if ( i == 0 ) { printf("testing\n"); } return 0; } The generated assembly fo...
Hi, How can i convert a float value to char* in C language ...
I use mysqld Ver 5.1.37-2-log for debian-linux-gnu I perform mysql calls from c++ code with functions mysql_query. The problem occurs when mysql_query execute procedure, procedure locked on locked table, so mysql_query hangs. If send kill signal to application then we can see lock until table is locked. Create the following SQL table ...
Hi Gurus, I am new to OpenCV and I have only Tiny C compiler configured on my Windows XP machine. Can I use this tiny C compiler to compile opencv programs for image manipulations. I have alredy installed python2.6 and opencv2.0 on my windows xp pc. If we can compile how can we do that? I tried on net but found nothing of use.. Please he...
This is sample program from "Beginning Linux Programming" book: #include <stdio.h> #include <term.h> #include <curses.h> #include <stdlib.h> int main() { setupterm("unlisted", fileno(stdout), (int *)0); printf("Done.\n"); exit(0); } Running it, I have this result: ./badterm 'unlisted': unknown terminal type. Accordi...
I would like to write a piece of code for inserting a number into a sorted array at the appropriate position (i.e. the array should still remain sorted after insertion) My data structure doesn't allow duplicates. I am planning to do something like this: Find the right index where I should be putting this element using binary search C...
void display(int a) { printf("\n%d",a); if(--a) display(a); printf("\n%d",a); } main() { display(4); } Please explain the above program. i can't understand.what is the output.ya sir i got oupt like this 4 3 2 1 0 1 2 3 how is it sir ...
int main() { int a[]={1,2,3,4,5,6,7,8,9,0}; printf("a = %u , &a = %u\n",a,&a); printf("a+1 = %u , &a+1 = %u\n",a+1,&a+1); } how a and &a are internally interpreted? ...
Hi I would like to write a piece of code which checks, for each network device (e.g. eth0, lo, master devices) some statistics and configuration data about that device. I could find the statistics data (and most of the configuration data) in /sys/class/net/..., however, I couldn't find any C/C++ API or any entry in procfs/sysfs listing t...
Hi, I have written some simple inetd-Service in C. It reads a string from the user, compares it to another string and then terminates. At least, this is what I want it to do. After reaching the return(0);-statement in main(), it simply restarts and presents me a new prompt. Is there any way to tell inetd that it should terminate the co...
main() { int a=1; void xyz(int,int); xyz(++a,a++); printf("%d",a); } void xyz(int x,int y) { printf("\n%d %d",x,y); } ...
I'm using Pthreads to create a new tread for each partition after the list is split into the right and left halves (less than and greater than the pivot). I do this recursively until I reach the maximum number of allowed threads. When I use printfs to follow what goes on in the program, I clearly see that each thread is doing its delega...
How to search fast in a non-sorted array? I am unable to think of any other search mechanism apart from linear search. Any pointers will be helpful. ...
I want to design a data-structure for storing elements, which will be retrieved only once after insertion and will be deleted after that. I can't use a stack or queue as the order of retrieval is not guaranteed. [EDIT] - I would like to use contigous memory (I would prefer to avoid doing malloc every now and then) and also I would pref...
anyone has an idea how to? ...