Dear list,
There's one feature that I miss after porting a for loop from R to C++
: the possibility to add a progress bar. I used to write,
library(plyr)
l_ply(seq(1,10), function(ii) Sys.sleep(0.2), .progress = "text")
My naive attempt in C++ was unsuccessful,
using namespace std;
cout << "["; //start progress bar
for(ll=0; ll<N; ll++){ // loop over some variable
if ( !( ((ll+1)*100/N) % 5) ) // display a character every 5 steps
cout << "=";
}
cout << "["; //stop progress bar
For some reason (compiler?) nothing is displayed until the end of the
execution, where the full text is suddenly displayed at once. Is there
a workaround?
Best regards,
baptiste
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