I have a function that take char* I call this function in an array, and I need to pass the following:-i+" binomial" to be like "2 binomial" or whatever value of i value (i is an integer) it is pretty easy to be done in java, but how to concatenate an integer with a string and get char* or string to pass to a new function.If you missed me i just need to get the following :string =integer + string
View 5 Replies
Code:
The error is:
Code:
What I want to do is take input of ip4 as a string, convert it to an integer to add 1 to it, then reconvert it back to a string. Its not working.
My full code is:
Code:
I have a program that loops over each word in a sentence. I need to append a constant to the beginning and end of each word. It works up until the last word on the line.
Code:
Output:
If I have a variable, say xvar, which can take both string and integer value and I want to perform an operation in following 2 conditions:1. Either xvar is null2. xvar equals 2[ -z "$xvar" ] || [ $xvar -eq 2 ] && <some-code>Doesn't seem to work if xvar takes string valuesI know that since I have no restriction on xvar, I can get away with string comparison in second test too, ie[ -z "$xvar" ] || [ "$xvar" = "2" ] && <some-code>
But, 'Sams teach yourself shell script in 24 hrs' says that [ expr1 -eq expr2 ], if either is string, it assumes 0 valueIs it true
copy string a to string b and change string b with toupper() and count the chars
View 3 Replies View RelatedI'm trying to write a simple program that lists a menu and then asks you for your decision, and you can answer with a number or the name. However, I don't know how to add the second options (name).
View 14 Replies View RelatedI have a file in which contains one line with a lot floating points.In the very first place and some times in the downstream, there are a few integers, surrounded by blank spaces.1 1.02-4 1.03-5 544 1.04-1 65 2.98-1 5.78-10 3.45-2 etc etc.I aim to split the file in more files each of them containing an integer and the following floatings until the next integer.
View 1 Replies View RelatedIn a c program the value of an integer variable is changing rapidly. I have to get the value of that variable at a particular instant from another program. How can i do it without using a file?
When i tried with extern variable as
I execute the both .c file from 2 terminals but got only value 0 printed for both var_a and var_b all the time .
I have a java compiler and Im using a double intiger called Experience and when compiled and run the double intiger does not hold intiger values that are mathameticle. Like 1.5 - 1.4 will equal .100000000000000000009 and 5/3 will equal 1.0. and 1.5x 1.4 doesnt equal 2.1. Is there something I am doing wrong with double intigers? Is it the compilers fault? Could it be something thats wrong with my computer and the compilers I am using are not tat fault? Anyways double 1.5 + 1.4 does equal 2.9 so.
View 4 Replies View RelatedI've got a strange bug that I cannot figure out how to solve. Here is the function.
Code:
int getnexttab(char input[], int index, int length)
{
[code]....
I need to convert an integer to a byte array of size 2 and vice versa. The code shown below works well for positive values but not for negative values. Also, using an array of size four makes the conversion works. However, I am limited to an array of size 2.
View 5 Replies View RelatedIt it safe to read a shared integer while another thread is writing to it on a multicore system?
View 3 Replies View RelatedI want to print a single digit integer on to the screen using the int 0x80. I have loaded the number in the ecx(=5, say), size in edx (=4, lenght) and eax (=4) ebx (=1). I've added 48 to the contents of ecx, and then calling int 0x80, I thought should print 5 on the screen.
However it does not print anything. also gives no errors. I checked the contents of the ecx reg (gdb), it has 53.
A snippet showing the this will be great. I've seen snippets using the c library (printf), but I want to see how it is done using int 0x80.
I've been trying to understand pthread in C a little better. So I made a simple program that takes in a string from the command line and creates a thread to print the string. I've looked online and copied the basic concepts but there are something things I'm confused about. The programs works just fine, but I have questions. Here's what I have so far.
[Code]....
One thing I'd like to know is why the 3rd argument in the pthread_create function which is my SendMessage function needs to be typecasted to a void pointer and then send the address of the function. Also as for the 4th argument, I would see typecasting to void pointer in some of the pthread examples I saw online, but in my case I'm passing a char pointer, would this be correct? In which case would I ever want to pass a void pointer?
Do I need a pthread_exit(NULL) in my main and in the SendMessage function? If so, why? I added the sleep() function so that I could let the pthread_exit function in my SendMessage function execute first. I simply saw that the online examples on pthread had pthread_exit() in both locations.
I have a set of lines as ahown below:
Leon went to school
Leon came back from school..
Leon had dinner...
I have to replace the line containing "dinner" by a single string LUNCH...
I need to creates string suffixes out of a Reference string. for eg. suffixes of abcdefg will be
1)bcdefg
2)cdefg
3)defg
and so on...
create an array of pointers to point to the first few characters and then use that pointer to print the rest of the string.But when i print using the pointer i get GARBAGE values! shudn't std::cout<<ptr[w] print the string following the char it is pointing to? why do i get garbage values?
So if I'm given a location of a file like:
How can I just take the type of the file at the end? I know I can use strrchr() for a period to get the pointer to the period just before file type. Is there a build in string function that will just take the rest of the string from a certain point on forward in the string? I know it wouldn't be much work to make it myself, but I figured I would find out if it already existed before doing it.
I've been given a custom-made string class which handles string, wstring and bstr. It has a number of methods and assignment operators to convert to and from different types. The app I work on compiles happily in VS6 and VS2008, but when trying to compile in Redhat (version 4.1.1 in Redhat 5.0)
[code]....
I have the following two type of strings1: A/D2: A/C/DI am trying to write a subroutine to check whether all of the letters in string 1 appears in string 2. If yes, return true. If not, return false. In the above example, all the letters (A and D) in string 1 are also present in string 2, so I return true.
View 4 Replies View RelatedDo I have the convert the int to a string using stringstream then convert the string to a char? or is there a more direct way?Also is there a way to tell the length of a int?
View 5 Replies View RelatedI have tried to learn how 64bit asm (nasm in my case) works and found, among the many disparate pieces of info on the net, a few vague inferences that floating point registers can be used for other purposes than what they are intended for, example: "64-bit Linux allows up to fourteen parameters to be transferred in registers (6 integer and 8 floating point)." This would be fantastic for string operations/manipulation (I have never used asm for floating-point operations), can anyone shed a bit of light?
View 8 Replies View RelatedConcatenating two files without creating a newline between them? So how is it possible to do that? I've tried the following:
Code:
echo 123 > file1
echo 456 > file2
cat file2 file2 > file3
[Code]....
unpacking and putting together files as below:
reception_vol_1.z01
reception_vol_1.z02
reception_vol_1.z03
[code]....
I have the following problem;When I concatenate several mp3 files the time duration is falsely detected by Rhythmbox when I open the newly created mp3 file. VLC Player however detects the correct time duration. I tried two ways of mergen the mp3's and both have the same falsely result. - mp3wrap- catI currently fixed it by opening the mp3 in VLC player and converted it again to a mp3 file which resolved the issue at hand. However this is not a solution I would like to have, nor a answer to what is the cause of the problem.So my question is simple -- what is the issue with the mp3 file and why is Rhythmbox indicating a falsely time duration?
View 3 Replies View RelatedI have a serial port program which is reading a string .if(read(readfd,sResult,1)>0)where sResult is unsigned char sResult[10];if sResult is array of 10 then iam getting string perfectly but if iam making sResult only as unsigned char I am getting NULL value CODE BELOW
Code:
unsigned char sResult;
main()
{
readfd = open("/dev/ttyUSB0", O_RDONLY);
if (readfd == -1)
{
perror("READ: open_port: Unable to open /dev/ttyUSB0-
[Code]...
I want normal substring of a string that actually is a url as follows
SITEURL/main.php?page=122&type=download_file&fileID=9&user Id=user1&org=org1&mainmenu=main1&submenu=sub1
What I want is a substring like below
org1_user1_main1_sub1
Which effect does the $ before the string have? This $ before a double-quoted string is used in many initscripts on Fedora 13, but not on Ubuntu 8.04.
View 2 Replies View RelatedI'm having problems completing my school exercises with awk.
Heres the desired outcome:
Code:
./my_awk 2
ACG GAG ATT AGG AGG ATC CCA CCA
CAC AGG ACG GAG ATT AGG AGG ATC
So it generates data in group of threes, 8 groups per row and prints it. My problem is that I can't seem to get awk to append stuff to string so I could print it nicely to screen. It just prints empty lines per the parameter given to it.
Heres my code so far:
Code:
#!/bin/sh
awk -v rows=$1 '
BEGIN {
[code]....
Iam trying to check a value less than or equals 0.The value iam getting is after doing grep a file . but its throwing error .
Code:
When i execute this it throws
Code:
I need to extract a price from a string, this may vary in the future so it may be 12.99 or 14.99. i thought a sed command might crack it and i need to write to a file:<td><b class="priceLarge">?6.99</b>I need to extract the price 6.99(with no ?)so extract anyhting between "> and </B> and write it to a file such as tmp1.txt .
View 1 Replies View Related
