for(int n = 0; c[n] != ' '; ++n)
std::cout << c[n] << " is not a space" << std::endl;
The reason yours doesn't work is because for loops increment at the end so it would really be equal to 0 :P You could however change it to -2 since -2 + 1 == -1.
The for loop really looks like:
1 2 3 4 5 6 7 8 9
int n = 0;
while( n != -1 )
if(c[n] == ' ')
n = -1;
You can also explicitly use the keyword break to break out of a loop though many people do not like using break statements for things like this but instead use a better condition as the first example I showed c[n] != ' ' I would also make sure you do not exceed the size of the string.