Uppercase substring

Question

ret += ": " + param.substr(tmp, rtmp);

I've tried and searched something useful to capitalize the first letter of the line above(substring) but had no success.

std::string ret = "stackoverflow";

    if(param.length())
    {
        trimString(param);

        size_t tmp = 0, rtmp = param.length();
        if(param[0] == '"')
            tmp = 1;

        if(param[rtmp] == '"')
            rtmp -= 1;

        ret += ": " + param.substr(tmp, rtmp);
    }

How it works?

Text

stackoverflow "whatever

Output

stackoverflow: whatever

And this is what i'm looking for

stackoverflow: Whatever

I suggest you should post [MCVE](http://stackoverflow.com/help/mcve). — MikeCAT, Mar 03 '16 at 02:58
I'm confused. Where do you think you're uppercasing a letter? — Hot Licks, Mar 03 '16 at 03:02
Possible duplicate of [Convert first letter in string to uppercase](http://stackoverflow.com/questions/8530529/convert-first-letter-in-string-to-uppercase) — Hot Licks, Mar 03 '16 at 03:06

score 1 · Accepted Answer · answered Mar 03 '16 at 03:07

1

Take

 ret += ": " + param.substr(tmp, rtmp);

And, first, extract the substring into a temporary variable, then uppercase the first letter:

 std::string s=param.substr(tmp, rtmp);

 s[0]=toupper(s[0]);

 ret += ": " + s;

answered Mar 03 '16 at 03:07

Sam Varshavchik

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Uppercase substring

1 Answers1