static_cast giving weird characters

Asked Sep 13 '19 at 17:32

Active Sep 13 '19 at 17:32

Viewed 108 times

I want to convert an integer to a character. I am new to C++ and used static type conversion but that is giving me weird characters.

Actual Case: I do not want the integer to be converted into a string because ultimately I have a vector of vector of characters vector<vector<char>> vec and I want to replace vec[i][j] with integer i. I tried doing vec[i][j] = (character conversion of i as below):

int i = 1; //I want a character '1'
cout<<char(i); //It outputs ╔
cout<<(char)(i); //It outputs ╔
cout<<static_cast<char>(i); //It outputs ╔

I am curious to what might be going wrong in above type conversion? Also How can I change a character via its [i][j] index in a vector<vector<char>>.

asked Sep 13 '19 at 17:32

ATK

1

Try `static_cast(i+'0')` – Ted Lyngmo Sep 13 '19 at 17:35
`char(i)` means "The character at position `i` in the character encoding table" (probably ASCII). – François Andrieux Sep 13 '19 at 17:35
Check out an [ASCII Table](http://www.asciitable.com/). – Jonny Henly Sep 13 '19 at 17:36
`I want a character '1'` Then write `'1'`. – eerorika Sep 13 '19 at 17:37
@LDV You should explore ASCII. Try this: `for(int i=0; i<128; ++i) std::cout << i << " " << static_cast(i) << "\n";` to get an idea. – Ted Lyngmo Sep 13 '19 at 17:39
What character do you want to convert it to? – Lightness Races in Orbit Sep 13 '19 at 17:40
@LightnessRacesinOrbit "_int i = 1; //I want a character '1'_" – Ted Lyngmo Sep 13 '19 at 17:42
1

@TedLyngmo Haha time to go home I think – Lightness Races in Orbit Sep 13 '19 at 17:48
@eerorika I had a integer variable that I needed to convert to character i.e. `int a=1 //I need char(a) i.e. '1'`. Nevertheless I got the answer as pointed out in comments by @Ted Lyngmo – ATK Sep 13 '19 at 19:18

static_cast giving weird characters

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