Trying to parse some text ( using C++ )

[Cristian]

I need to get a block of text into memory and for that i'd use
text=(char**)realloc(text, no_lines*sizeof(char*));
text[no_lines]=(char*)malloc(max_line_width*sizeof(char));

however when I try

text=(char**)realloc(text, 8*sizeof(char*));
text[0]="test";

it crashes. does anyone know an efficient method of parsing
a block of text, please?

EDIT. Nevermind. solved. Forgot to properly allocate from the very start!

[bitplane]

first up you shouldn't use malloc/calloc/realloc, you should use 'new' and 'delete' in c++:

Code: Select all

c8 **arr = new c8*[size];
delete [] arr;

even better, try irrlicht's string and array classes, they manage all the memory for you and the end result is much cleaner nicer looking code (at the cost of a few cycles)

Code: Select all

  array<string<c8> > text;
  text.set_used(no_lines);
  text[0] = "some text which, ";
  text[0] += "unlike a const pointer can be edited later";

[execute]

Or you can just allocate memory normally:
char* somechar = ParseText(text);
char achar[sizeof(somechar)+1];
strcpy(achar, somechar);

Well it's just trial and error with pointers if it gets too complicated.

[hybrid]

No, dynamic arrays are not supported by most compilers, so simply avoid it. You should put in a constant only into your array size: [constant]