include
using namespace std; int main() { string s = "abcd"; int i = -1; while(i < s.size()){ cout << "inside "; i++; } cout << "outside"; return 0; }
why this loop does not run, where as when we initialize i = 0, then it runs properly
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using namespace std; int main() { string s = "abcd"; int i = -1; while(i < s.size()){ cout << "inside "; i++; } cout << "outside"; return 0; }
why this loop does not run, where as when we initialize i = 0, then it runs properly
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Auto comment: topic has been updated by rashid_aziz (previous revision, new revision, compare).
You make a comparison between
i
, which is a signedint
, ands.size()
, which of an unsigned type. One of them must be casted to the type of the other one in order for the comparison to be calculated. Try castings.size()
toint
manually and the code will run