char *thisone[1][1]={ { "one", "two"}, { "ten", "eleven"} };

this is ok .

but can I assign a value to thisone[1][1] for example ?

thisone[1][1] should store "eleven" right now.

char *thisone_newvalue;

let's assume thisone_newvalue during the program execution
gets a value of "thisone_new_value";

is the following correct ? (I'm sure it is not, that's why I'm asking)

thisone[1][1] = thisone_newvalue;

How can I do to accomplish what said ?

I can't really figure it out.

--

| Kingpriest of "The Flying Lemon Tree" G++ FR FW+ M- #108 D+ ADA N+++|
| http://www.helsinki.fi/~palaste       W++ B OP+                     |
\----------------------------------------- Finland rules! ------------/

printf("%s\n", thisone[0][0]);
printf("%s\n", thisone[0][1]);
printf("%s\n", thisone[1][0]);
printf("%s\n", thisone[1][1]);

one
two
ten
eleven

isn't it ?

as for this one:
char *array[1]="a";

array[0] == 'a';
array[1] == '\0';

A string literal used as an initializer for a char array
(or a wide string literal for wchar_t[]) is a special case,
and is treated as the characters which make it up,
followed by a null terminator _if possible_.
  char x[3] = "ab"; /* or */ char x[] = "ab";
both define x as array of three chars, 'a' 'b' '\0'.
  char x[2] = "ab";
defines x as array of two chars 'a' 'b', not null-terminated
and thus not usable with many standard library functions.

char * x[1] = { "ab" }; /* or omit the 1 from the [] */
defines x as an array of one _pointer_ to char,
which is initialized to point to an anonymous
array of three characters 'a' 'b' '\0'.