Re: vector<string> to char*[]
* Chris ( Val ):
On Oct 2, 4:33 pm, "Alf P. Steinbach" <al...@start.no> wrote:
* Andrew Wingorodov:
i have std::vector<string> arg; for dynamic program configuration.
i need get const char* argv[]; for execv(3).
how i can make its simple?
there may be ready solutions?
std::vector<string> arg;
...
std::vector<char const*> v( arg.size() );
for( size_t i = 0; i < v.size(); ++i ) { v[i] = arg[i].c_str(); }
blahblah( &v[0] );
Whay go through all that when he already has what he wants
in his original vector?
const char* tmp = arg.at( n ).c_str();
Andrew wants an array of pointers to C-strings, for use as execv
argument (later down the thread I checked execv's signature and found
that there's also a const issue, and that the array should be
null-terminated, but those are just technicalities).
What you have is one pointer to a C-string.
Cheers, & hth.,
- Alf
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