char « dynamic « C Array Q&A

1. Creating an dynamic string array which is pointed by a const char pointer    stackoverflow.com

I would like to create an array in C which dynamically grows and stores string .And would like to point that array by an pointer . How can I do it? ...

2. How would you add chars to an array dynamically? Without the array being predefined?    stackoverflow.com

If I want to add chars to char array, I must do it like this:

#include <stdio.h>

int main() {
    int i;
    char characters[7] = "0000000";
  ...

3. C char pointer vs pointer to char array, increment dynamic allocation    stackoverflow.com

I am new to C, and I am having difficulty understanding the reason why the block of code below is not working.

#include <stdio.h>
#include <stdlib.h>

int main()
{
    char *src = ...

4. C Dynamic Array based on input from console    stackoverflow.com

I am writing a program that stores input from the console. To simplify it lets say I need to output what was wrote to the console. So I have something like this:

int ...

5. how to qsort dynamically allocated 2d char array    stackoverflow.com

I am trying to qsort a dynamically-allocated 2d array, without success. I assume it has something to do with the dynamic allocation, because things work fine if I use a ...

6. How to create dynamic char array?    bytes.com

Thanks for reply. As per my project demand i am not supposed to use stl and string class. Below is an example of my need. #include using namespace std; int main() { char str1[20] = "0000000000000000000"; char str2[10] = "000000000"; // insert str2 into str1 at position 5 in str1 return 0; } How this can be done? Since this ...

7. Dynamic char array allocation and assignment    cboard.cprogramming.com

So to explain what's going on in your program (and if I say it wrong, I'm sure someone will slap my hand) : C doesn't have a true pass by reference. That is, game in your function is not some alias to game in main. It is a local variable, a pointer to pointer that expects an address as argument for ...

8. scanf "%as" (dynamic char arrays)    cboard.cprogramming.com

An optional 'a' character. This is used with string conversions, and relieves the caller of the need to allocate a corresponding buffer to hold the input: instead, scanf() allocates a buffer of sufficient size, and assigns the address of this buffer to the corresponding pointer argument, which should be a pointer to a char * variable (this variable does not need ...

9. 2D char array with dynamic mem allocation gives mem corruption    cboard.cprogramming.com

void main(void) { char **name, string[100] = "Xyz String"; int i=0, n=25, index=0, numOfRows=1; name = (char **)calloc(numOfRows, sizeof(char **)); for(i=0; i%03d %s\n",i,name[i]); for(i=0; i

10. what is wrong here??? dynamic array of chars    cboard.cprogramming.com

#include using namespace std; void strcat(char* t, char* s); void main(){ char* t, *s; t=new char[200]; s=new char[100]; if (t==NULL || s==NULL) exit(1); else { t="Hello world"; s="avi"; strcat(t,s); cout<

11. Dynamic allocation for array of pointers to char    cboard.cprogramming.com

Code: #include #include #include int main(int argc, char *argv[]) { char **students; /* one is the array of pointers to char to store students names */ int * scores; /* an array of integers to store the results */ int num, i; if ( argc > 1 ) { num = atoi( argv[1] ); } else { printf("Please ...

12. Dynamic Char array in C    forums.devshed.com

When I population the value dynamically, all the values are getting update by the last one: see the code: #include #include char ***array; main() { int i=0, j=0; char oneline[250]; char *c; char *str; FILE *rfile, *wfile; wfile = fopen("test.out", "w"); initArr(); if ((rfile = fopen("test.dat", "r")) == NULL) printf("File could not be opened\n"); else { do { c ...

13. Dynamically populating char array    daniweb.com

#include #include #include typedef struct { int count; // counter to use the word's occurrence char word[99]; } word; char str[99]; word myword[50]; int main() { FILE *myfile; if ((myfile = fopen("wordlist", "r")) == NULL) { printf("\n Error:Can't open file \n "); exit(0); } int position = 0; while (fscanf(myfile, "%s", str) != EOF) { printf("position[%d] word:<%s>\n", position, ...

14. Trouble deleting dynamically allocated char array    codeproject.com