问使用字符串的c_str()并分配给const*：只读位置的赋值

EN

src/rshell.cpp:45:44: error: assignment of read-only location ‘*(c_arr 
((sizetype)(((long unsigned int)i) * 8ul)))’
for (int i = 0; i < size1; i++) c_arr[i] = commands.at(i);

/* Confusing as heck, let me explain!
 * char const* means pointer to a constant char
 * so char const* const means a const pointer to a const char
 * and char const* const* means a const pointer to a const char pointer!
 * (Read declarations from right to left to make it make sense -
 *  char const* = POINTER (*) to a CONST CHAR)
 */
char const* const* c_arr = new char*[size1];
for (int i = 0; i < size1; i++)
  c_arr[i] = commands.at(i); // line 38

for (tokenizer::iterator it = parse.begin(); it != parse.end(); it++)
  words.push_back(*it);

vector<const char*> commands;
// add string to c_string equiv return vector
for (vector<string>::iterator it = words.begin(); it != words.end(); it++) {
    commands.push_back(it->c_str());
}