Convert a number to a string with specified length in C++

Question

I have some numbers of different length (like 1, 999, 76492, so on) and I want to convert them all to strings with a common length (for example, if the length is 6, then tho

Answer 1

There are many ways of doing this. The simplest would be:

int n = 999;
char buffer[256]; sprintf(buffer, "%06d", n);
string str(buffer);