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Hi, I wish to compare partial bits of two one dimensional vectors. I know how to compare the two vectors completely. [ICODE]int main () { std::vector<int> vector1; std::vector<int> vector2; int out; vector1.push_back(100); vector2.push_back(101); vector1 == vector2 ? out = 0 : out = 1; printf("out = %d \n", out); return …

Hi, I am trying to use the "partition" from STL algorithms. I get the following error: [CODE]error: no matching function for call to ‘partition(__gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, __gnu_cxx::__normal_iterator<int*, std::vector<int, std::allocator<int> > >, <unresolved overloaded function type>)’ /usr/include/c++/4.2.1/bits/stl_algo.h:2098: note: candidates are: _ForwardIterator std::partition(_ForwardIterator, _ForwardIterator, _Predicate) [with _ForwardIterator = __gnu_cxx::__normal_iterator<int*, std::vector<int, …

Hi, I am trying to compile an open source code on linux Ubuntu and getting the following error: conflicting types for ‘strlen’ I am pasting the program in which it is giving me the error : [CODE]#include <stdio.h> #include <stdlib.h> #include <string.h> #include "port.h" /* * strstr - find first …

Hi, I am using the following code to convert character array in file to integer. However, the problem is that there is only one place in the file where it does not convert the character array to integer correctly. Since my code is big, i am pasting the most relevant …

Hi, I am trying to see to which key the iterator is pointing in a map. is there a way to do so. Also, would it be the fastest way to store unique keys in a map. [CODE] mapType::iterator it = cube.begin(); mapType::iterator its = it; std::advance(its,1); for(; it!= cube.end(); …

Hi, I am trying to see to which key the iterator is pointing in a map. is there a way to do so. Also, would it be the fastest way to store unique keys in a map. [CODE] mapType::iterator it = cube.begin(); mapType::iterator its = it; std::advance(its,1); for(; it!= cube.end(); …

Hi, I am trying to read he has map starting from the second key instead of first key. I have two loops. One for loop iterator reads from the beginning of the has map. And the second for loop is trying to read from the second key of hash map. …

Hi, I have a 2 dimensional vector containing entries such as : 10X 01X 001 I merge two rows at a time and get a new row of elements. In other words, when i combine "10X" and "01X" i might get "001" but since "001" is already there i do …

Hi, I am trying to replace the old_string with the new_string using sed. But i am unable to do it using the following script. [CODE]#!/bin/sh old_string="p cnf 10 20" new_string="p cnf 98 99" sed -e 's/old_string/new_string/' file1.txt > file2.txt [/CODE] Contents of file1.txt [CODE]p cnf 10 20 1 2 3 …

Hello, I am having trouble in using the data member of class 1 in the member function of another class 2. Following is my code. [CODE]class a { public: a(); ~a(); std::vector<int> temp; }; class b { public: b(); ~b(); int test(); } b::b() { a *a1; a1 = new …

Hi, I have two directories and each directory has a *.cpp and *.h and a Makefile. I am also creating an instance of the class of program1(in one directory) in program2(in other directory). I have a main Makefile that makes the two makefiles in each directory. i am getting the …

Hello, I am getting the follwoing error in my program: *** glibc detected *** free(): invalid pointer The program is as follows. [ICODE]int main() { operation1* sjob1 = new operation1(); answer* ans1 = sjob1->execute(); delete sjob1; operation2* sjob2 = new operation2(); answer* ans2 = sjob2->execute(); return 0; }[/ICODE] I have …

Hi, I have a c++ program which uses the api's of a utlitiy. As per the document I have to include the path of binaries for the utility in my code. I am not sure why that is required and how to inlcude that. Any help is appreciated Thanks

Hi, I wish to know that the cause of the following error when i run the program : a) Is memory leak in the program B) The system on which i am running the program has insufficient memory. [ICODE] terminate called after throwing an instance of 'St9bad_alloc' what(): St9bad_alloc[/ICODE] Thanks

Hi, I am getting the following error in my code. [ICODE] malloc: *** error for object 0x3b0fe80: double free *** set a breakpoint in malloc_error_break to debug[/ICODE] When i debug it and do a backtrace i get the following [ICODE] #0 0x90c994a9 in malloc_error_break () #1 0x90c94497 in szone_error () …

Hi, I have to use fscanf to read the numbers in a line. The line is in the file "FileName1" and may or may not have EOF. I am using the following code and it is stuck in an infinite loop. [ICODE] FILE *Fileget; vector<int> get_value; Fileget = fopen(FileName1, "r"); …

Hi, Following is the function which is giving me a segmentation fault. I do not know what is wrong in this code. I am counting the number of lines in the file. [ICODE] char f11; char c; int f12 = 0; FILE *ilfile; ifstream ficnf; int size_f = 0; int …

Hi, i wish to know the difference between the following two code? ifstream fin(fname,ios::in); vector<string> temp; while(getline(fin, line) { temp.push_back(line); } and while(!fin.eof()) { getline(fin,line); temp.push_back(line); } thanks

Hi, I am getting "Segmentation fault" error in line number in the following function. [ICODE]deque <string> text; deque <string> text_1; int circuit::writetofile(int maxno,char *fname) { /* Before writing the clauses correct the line p cnf */ //deque<string> text; std::string s,t; /* Counting the number of original clauses in the file …

Hi, I am getting the error "Segmentation fault" when i run my program. Then when i debug the code to find the cause of the error i get the following error messages. I do not know what these error messages mean: Error Message: ------------------------------------------------------------------ Program received signal SIGSEGV, Segmentation fault. …

Hi, How can i delete the file in the middle of the program in C++ Thanks

Hi, I wish to remove the extra unwanted characters in the file name. [ICODE]f1::f1(char *filename1) { char file_txt[40]; strcpy(file_txt,filename1); strcat(file_txt,".txt"); system("rm file_txt"); }[/ICODE] In debug mode when i check the value of file_txt i get : file_txt = "../../input.txt\000\000\000\000F\000\000\000\001\000\000\000\001\000\000\000\v\000\000\000\002\000\000\000\000\000\000\000\001\000\000" I do not know hoe to get rid of the extra …

Hi, I am getting the following error while compiling the code on linux machine. "aggregate value used where an integer was expected" I am getting this error on a simple for loop. I do not know the reason for this error. Any help is appreciated. Thanks

Hi, I am getting the following error when I am trying to initialize a 2 dimensional vector with 0's. I am not to figure out the reason. Any help is appreciated. [ICODE] std::vector<int> truth_table; std::vector<vector<int> > truth_table_col; double no_of_twos = 7; double base_two = 2; cout << "No of 2's …

Hi, I am comparing two file to find if they have common strings. My program is not doing that and I cannot figure out the reason. Any help is appreciated. Following is my code: [CODE]int main() { FILE *inf1 = fopen("file1.txt","r"); FILE *inf2 = fopen("file2.txt","r"); int numcols = 11; char …

Hi, I am trying to compare two strings. When i enter two arguments on the command line 12 and 100, the flag1 should be set to 1 because (argv[1] =) "100" > (junk2 = )"13". But this is not happening. So, how can i check that the input arguments entered …

Hi, I am getting a segmentation fault at the following line in the code. I am reading a file using ifstream. The file contains some initial junk data followed by useful data. I wish to read and discard the junk data from the file, before I read the useful data. …

Hi, I am trying to read number from file. Following is my code. I am not able to read it correctly. When i>1 then i should read the second and third line of the file and store the values in the vector rows. But it is not reading the second …

Hi, I wish to read the file twice. I am using ifstream to read the file. I tried using rewind(File pointer). But i get an error. How can i do it. Thanks

Hi, I am getting an error when running a code on linux machine: "terminate called after throwing an instance of 'std::bad_alloc' what(): St9bad_alloc Aborted" In my code i have a 2 dimensional vector defined. Can someone tell me the possible cause of error. Thanks

Hi, i have few programs which i have compiled using "make all". When i debug the main program, during debugging i get the following message : ****Stepping over inlined function code.*** As a result i am unable to debug the program line by line. The debugging is random. I am …

Hi, I am getting the following error while compiling: "Undefined symbols: "main_class::binary(int, std::vector<int, std::allocator<int> >&, int)", referenced from: main_class::identity(int, int, int)in test_sat.o ld: symbol(s) not found collect2: ld returned 1 exit status make: *** [test] Error 1" Following is the code : [ICODE]int main_class::identity(int rowno, int size_row, int loop_iterate) { …

Hi, I have a file output.txt as follows : c FILE c c c p val 25 36 8 1 0 -1 -8 0 -9 -7 0 -9 -2 0 7 2 9 0 -10 6 0 -10 8 0 -6 -8 10 0 -11 -9 0 -11 -3 0 …

Hi, I wish to generate all the binary combinations for an input size n. So, the number of combinations in this case would be (2^n) and if n=2 my output should be : 00 01 10 11 How can i do it? What would be the best way? Thanks

Hey, i have to also change a particular string in one line of the file. can i have a look at your code ? Thanks

hi, How can i pass a stack to the function. I am getting compilation error. Following is my code. [code] class circuit { public: int append_and_file(stack<int> &); /* Some other variables defined */ } int circuit::unroll() { append_and_file(add_stack_ppi); } int circuit::append_and_file(stack<int> &stack_ref) { int var=0; int num_clauses = 0; stack_ref.push(2); …

Hi, I have to call an external executable program (prog2) from within my program (prog1) and then use the output of that exceutable program (prog2) in program (prog1) after calling it. I have to manipulate the output obtained from progam (prog2) in program (prog1) and then perform this iteration n …

Hi, I am using the STL container for stack. <include> stack; I wish to check whether the integer is already in the stack or not before adding it into the stack. If it is in the stack then i do not need to add it. But if it is not …

Hi, How can i delete a particular element using delete operator? Thanks

Hi, I am getting the following error : test.o(11488) malloc: *** mmap(size=2097152) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug test.o(11488) malloc: *** mmap(size=2097152) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug test.o(11488) malloc: …

Hi, I am getting the following error: test.o(5209) malloc: *** mmap(size=2097152) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug I am using finite recursive function in my program. Please help with my query. Thanks

Hi, Is it possible to run another program from within a first program and after running it return back to first program.

Hi, I am using fgets in my program to count the number of lines in file. The number of columns in each line is entered by the user. But the number of lines are not known. After counting the number of lines in the file i am again using it …

Hi, I am trying to read the file (f1.txt) which contains : 3 0 -6 0 4 0 -8 0 ... I wish to read the first number from consecutive 2 lines and process them. Following is my code: std::vector<int> row; std::vector<std::vector<int> > two_node; int main() { string line1, line2; …

Hi, I am trying to generate 2000 random 3 bit binary numbers. I am using the following code to do that but I am getting an error. #include <bitset> #include <stdio.h> #include <cstdlib> #include <strings.h> #include <iostream> #include <vector> #include <time.h> using namespace std; int main() { for(int i=0; i<2000; …

Hi, Following is my code : i=3 j=3 while [ $i -le $count1 ] do i=`expr $i + 3` head -n 60 file1.imp >> s27.txt [COLOR="Red"]while [ $j -le 60 ] [/COLOR] do head -n 3 file2.imp >> s27.imp ./prog1 s27.txt > result.txt if grep OUT result.txt then head -n …

Hi, I wish to delete the last three lines of a file iteratively. I tried this in unix shell scripting but it is not working.. lines=$(wc -l < s27.cnf) target=$((lines-2)) sed '$target,$lines d' s27.cnf > f2.cnf mv f2.cnf s27.cnf I am getting an error "sed: 1: "$target,$lines d": undefined label …

Hi, I wish to delete the first 3 lines from a file. Following is my code which goes into an infifnte loop. [code=cplusplus] int main() { vector<string> text_file; fstream fout; int count = 1; fout.open("tempfile.txt"); assert(!fout.fail()); string temp; while(!fout.eof()) { if(count <= 3) { getline(fout,temp); count++; } if(count > 3) …

Hi, I wish to do the following things: a) Append the first three lines from the file "file1.txt" at the end of another file "file2.txt" b) Run a program "prog1.cpp" which uses the file file2.txt. c) Delete the three lines appended at the end of the file "file2.txt". and append …

Hi, I wish to read an input file 5 times. I am able to read it once but when i try to read it second time i am unable to do that because the file pointer is stuck at EOF. Can anyone suggest a small sample code of how to …