C declare dynamic arrays? As far as I know, it doesn"t work. You must specify size
. For example, the following will report an error
string name[];then the parameters of, command line implement the declaration of dynamic array in the following main function
int main(int argc, string argv[])
{
}Please advise
the [] that appears in the parameters of the function is actually a pointer.
is equivalent to int main (int argc, string * argv) in terms of the example you gave
array can be thought of as the syntax sugar of the pointer to some extent. So the dynamic array is actually
.char *name = malloc(100);
// when you need to extend your string
name = realloc(name, 200); argv is actually similar to that of a string, which is marked by the last '\ 0' . You can imagine that the system realloc has just enough memory.
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