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Member Avatar for Jammie

Hi there, I tried binary addition. It seems to work fine. Could someone tell me if there's a better way of doin this or any bugs that could be uncovered in the code below? I appreciate your time. Thanks, Tina [code=c] #include <stdio.h> void binaryAdd(char *, char *); int main() …

Member Avatar for arunsolo1984
1
955
Member Avatar for drdaco

This is dumb and I've been banging my head against it for the better part of the day, so perhaps someone here could help me see the light I keep missing. Let's say I have a string of 0/1's (or heads of tails coins, or yes or nos etc) For …

Member Avatar for Adak
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232
Member Avatar for kookai

hi I need help with this problem. I have tried writting the program, i just can not get it to run properly. Please Write The Fibonacci series 0, 1, 1, 2, 3, 5, 8, 13, 21, ... begins with the terms 0 and 1 and has the property that each …

Member Avatar for Nick Evan
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Member Avatar for csinquirer

Sorry guys, I know I should be thinking about this myself but after having all my seven proposals rejected:sad: , I have resorted to daniweb. Please give some ideas for a good thesis topic. If possible, please suggest something with some educational or business potential.:cool:

Member Avatar for Nick Evan
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521
Member Avatar for monkey_king

I'm having difficulties understanding and printing the max value of a size_t type. Apparantly the size_t is typedefed to a unsigned long int on my system. Is this safe to assume its the same on all c++ compilers? The 'sizeof' function returns the number of bytes(size char), used to represent …

Member Avatar for idallen
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1K
Member Avatar for wiglaf

I have been searching my texts, the web, and DaniWeb for information about how to share data between compiled C++ executables. I've been studying extern variables and named pipes without success. A typical program calls another program like this: float Pi = 3.14; system("AdjustSeaLevel.exe Pi 5.4 11.2 c f g"); …

Member Avatar for Frej
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Member Avatar for jp071

Hello, When i run my program it shows just segmentation fault. As my knowledge, segmentation fault can occur for pointer and memory related fault. But i could not find out my mistake. Please see some part of code(maybe, that is related to segmentation fault): [CODE] char *state_in; //state_in = malloc(1024); …

Member Avatar for jp071
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247
Member Avatar for monkey_king

Hi, Can someone elaborate why the following (the if conditional) differs [CODE=c] int main(){ const char *filename = "test.txt"; int ifd; if((ifd=open(filename,O_RDONLY))<3) err(EX_NOINPUT, "%s", filename); fprintf(stderr,"ifd is:%d\n",ifd); off_t bytes_in = lseek(ifd, (off_t)(-4), SEEK_END); return 0; } [/CODE] vs [CODE=c] int main(){ const char *filename = "test.txt"; int ifd; if(ifd=open(filename,O_RDONLY)<3) err(EX_NOINPUT, …

Member Avatar for monkey_king
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121
Member Avatar for monkey_king

Hi I've found a strange problem on ubuntu64bit, that limits the data you are allowed to allocate on a 64bit platform using the c function 'read()' The following program wont allow to allocate more that 2.1gig memory. [CODE=c++] #include <stdio.h> #include <stdlib.h> #include <err.h> #include <fcntl.h> #include <sysexits.h> #include <unistd.h> …

Member Avatar for monkey_king
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140
Member Avatar for monkey_king

I've been programmin on and off for some time. But today I saw something I hadnt seen before Some thing like [CODE=c] void error OF((const char *msg)); void gz_compress OF((FILE *in, gzFile out)); #ifdef USE_MMAP int gz_compress_mmap OF((FILE *in, gzFile out)); #endif void gz_uncompress OF((gzFile in, FILE *out)); void file_compress …

Member Avatar for jonsca
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131
Member Avatar for timtianchen

[CODE]int main(){ string array[][]=get_element(2,3); return 0; } string get_element(int numrow,int numcol){ string result_array[numrow][numcol]; for (int i=0;i<numrow;i++) { for (int j=0;j<numcol;j++) { result_array[i][j]=" "; } } return result_array; //ERROR is on this line } [/CODE] I get error: conversion from ‘std::string (*)[(((long unsigned int)(((long int)numcol) + -0x00000000000000001)) + 1)]’ to non-scalar …

Member Avatar for monkey_king
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Member Avatar for marirs07

i've done a c program which involves creating and updating of files,i'd like to run my exe online,and moreover i want my files to be updated automatically after i work on that exe ,is there any way to do this.Plz Reply Soon.Thanks in advance.....

Member Avatar for restrictment
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Member Avatar for arshad115

i have so many functions in my program,what i want to do is, i want to return back to the main() but in somewhere middle of it!. should i use goto statements? i tried 'em,it gave some error! if i should use goto then please explain how to,thanks

Member Avatar for Cokaric
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Member Avatar for dchunt

Now i have an array, P[8]={0,1,1,2,0,3,1,0} And i want to add 4 separate values to each element in the array,so if i was to lookup P[2] i can access its 4 values. I tried doing it by giving those standard values an array of itself and making each value get …

Member Avatar for Tom Gunn
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Member Avatar for ladykaelin

Hi: How can I write a program using pointers and classes. My program suppose to translate dollar amounts in the range 0 through 9999 into an English description of the number. For example, the number 710 could be translated into the string seven hundred thirteen, and 8203 would be translated …

Member Avatar for monkey_king
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Member Avatar for umair125

i am doing bscs from GCU lahore PK.i have assigned a project name as MOVIE RENTAL STORE using OOP concepts plz help me to do my project i,ll b thankful to you, umair ahmad

Member Avatar for Ancient Dragon
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477
Member Avatar for monkey_king

If I simply just want to tokenize the first element of a string and then output the remainder of the string, how can this be accomplished? thanks [CODE=c] #include <stdio.h> #include <string.h> int main(){ const char* line= "0 firstline"; char* l = strdup(line); printf("beforeToknization:\t%s\n",l); char *tok = strtok(l," "); printf("firstToken:%s\trestOfLine:%s\n",tok,l); …

Member Avatar for jephthah
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Member Avatar for monkey_king

Hi I got a code that in pseudo dos something like [CODE] ifstream os; while(os.oef()){ os.getline(buffer,length); } [/CODE] If some condition is met, I'd like to be able to jump back to the previous line, such that the next getline will give the line just-read in, at a later time …

Member Avatar for mvmalderen
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Member Avatar for Shaitan00

The age old issue of string parsing comes up again ... I have a text file that contains lines that are SUPPOSED to follow a set format, specifically: string, string, long string int string double int The delimiters are therefore: Comma (,) for the first two fields Spaces for all …

Member Avatar for jencas
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Member Avatar for monkey_king

Hi, given a cstring, I need to extract the digits in it, the digits are prefixed with either a '+' or '-'. Like [CODE] ,.,.,.,+3ACT,.,.,.,.-12,.,.,.,.,.,.,.,actgncgt #OUTPUT 3 12 [/CODE] I've made a working program that does what I want, but it seems overly complicated. Does anyone have an idea if …

Member Avatar for Yrth
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Member Avatar for slawted

hello guys i recieve errors when compiling my code [code] #include <iostream> #include <fstream> #include <string> int main() { std::string firstname, lastname, age, emailadress, message; char answer; std::cout << "Hello please imput your first name: "; std::getline(std::cin, firstname); std::cout << "\nNow please enter your last name: "; std::getline(std::cin, lastname); std::cout …

Member Avatar for Lerner
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Member Avatar for anirbanjoy

Hi, I have 3 seperate make file where, 1st one generates a static library libCanOpen.a, (using ""ar -r ") 2nd one creates a dynamically linkable library libPixyCANopen.so (using "g++ -Wall -fPIC -shared") and the 3rd one creates the executable by linking it to libPixyCANopen.so. The 1st two makefiles build without …

Member Avatar for anirbanjoy
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368
Member Avatar for vishalonne

Hi Every Body I am new born in C++ I am facing and error for last 3 days I tried my best with all what I knew but FAILED..... Error is - " Linker Error: Undefined Symbol Library::code in module PRGDONE.CPP" I am using Turbo C++ 3.0 of Borland Here …

Member Avatar for monkey_king
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Member Avatar for george_cpp

Hi All, Does anyone know which file manipulation library is faster between c's FILE and c++'s fstream? I would suppose that c++'s fstream would be the faster but I just wanted to see some expert advice/opinion on this. I googled the internet without finding anything concrete. If there is any …

Member Avatar for monkey_king
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Member Avatar for monkey_king

Hi I'm having a very basic newbie problem, The compiler forces me to do a strdup (because of cons correctness), can I void the extra line in my code, and then I cant seem to update my array after the funciton call [CODE=c++] void fix_name(char *name){ if(name[strlen(name)-1]!='/'){ char *tmp = …

Member Avatar for monkey_king
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Member Avatar for kostasxx

i need to make a program that finds all primes between some numbers the biggest number is 1000000000. the code that i have works fine, the only problem is that what i thought that would solve this, is too slow [code] #include <stdio.h> int main(){ FILE *fin=fopen("in.txt","r"); int t,n1[10],n2[10],i,j,ex,k; fscanf(fin,"%d\n",&t); …

Member Avatar for vs.vaidyanathan
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Member Avatar for monkey_king

Hi, can anyone tell me why i can't clean up the memory, and maybe a small solution. I'm allocing memory with strdup for each key, but I cant figure out how to erase the key with free. Before anyone starts talking about mixing c++ and c, I know it's generally …

Member Avatar for ArkM
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Member Avatar for monkey_king

Hi, [LIST=1] [*]Question Why does valgrind complain? [CODE] Conditional jump or move depends on uninitialised value(s) ==25636== at 0x4C26D29: strlen (mc_replace_strmem.c:242) ==25636== by 0x40060A: main (test.c:7) [/CODE] [*]Question Strlen doesnt apparantly tell you how much space you have in your array, but the number of chars til '\0'. I my …

Member Avatar for fpmurphy
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Member Avatar for monkey_king

Hi I stumpled upon some c-code, which syntactically is different from what I've seen before. [LIST=1] [*]first [CODE=c] void strreverse(char* begin, char* end) { char aux; while(end>begin) aux=*end, *end--=*begin, *begin++=aux; } [/CODE] Would this be the same as [CODE=c] void strreverse(char* begin, char* end) { char aux; while(end>begin){ aux=*end; *end--=*begin; …

Member Avatar for monkey_king
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Member Avatar for Massena

I hate to be spamming the forums with this, but I've been banging my head at the wall for a few hours now, and I can't really understand what is going on. Here's the full program I'm running: [code=c++] #include <iostream> #include "math.h" int main() { std::cout << sin (3.141592653589793) …

Member Avatar for ArkM
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