c - Compare position of a string with an integer -

per example:

string: 1 2 3 4 5

i want make loop compare each of string positions int provided user. tried

if(atoi(string[i]) == value)

but didn't seem work, need change other way around? (the int string, strcmp?) in advance

i'm assuming you're doing in c++.

atoi takes const char* argument, you're passing char. need this:

std::string str(1, string[i]); if(atoi(str.c_str()) == value) ... 

or skip atoi altogether , do

if(string[i]-48 == value) ... 

this works because numerals start @ ascii value of 48 , you're checking 1 character @ time.

disclaimer: i'm assuming string char[] , therefore string[i] char