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how can i read to c++ string from position one not zero
By KayacanV, 10 years ago, In English

how can i read to c++ string from position one not zero

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10 years ago, # |
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If you are using char*, you can make sth like

char s[1000];
gets(s + 1);
or
scanf("%s", s + 1);
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    10 years ago, # ^ |
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    no i am using std :: string

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      10 years ago, # ^ |
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      s = "#" + s;

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        10 years ago, # ^ |
        ← Rev. 2   Vote: I like it +5 Vote: I do not like it

        I forgot, ty

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          10 years ago, # ^ |
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          I actually use this whenever I use strings (though for not that long time). Got a problem xd? It is comfortable, makes everything much easier for those indexing from 1 (I belong to that set) and in fact it is linear in time, but time it executes is really neglectable, surely much shorter than that needed to read it.

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          10 years ago, # ^ |
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          char * const str = &s[0] - 1;

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        10 years ago, # ^ |
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        Is this constant time?

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          10 years ago, # ^ |
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          I'm not sure, but it should be at worst O(n), and since you read the string, the program must be at least O(n), so it shouldn't matter anyway.

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10 years ago, # |
  Vote: I like it -20 Vote: I do not like it 
    char temp[1000];
    gets(temp + 1);
    temp[0] = ' ';  // Some char that should stay in 0's position in your string
    string s(temp)
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