Unicode to double and display a double in a textArea

[GMeur]

Hello,

How can I convert a Unicode::UnicodeChar* to a double ? I've only found the function "atoi" to convert it to an 'int'.

And also, how can I display a double in a textArea as such :

Unicode::snprintf(textArea1Buffer, 10, "%f", 2.5);

Thanks in advance!

[d.v.]

Hi,

you can try with

Unicode::snprintfFloat(textAreaValBuffer, TEXTAREAVAL_SIZE, "%#1.1f", 2.5);

I use it for float, maybe works also for double,

Other info in Unicode.hpp file

Hope it helps

[GMeur]

Hey,

Thanks for the suggestion, it works! But still, I've got no idea how I can convert a Unicode::UnicodeChar* to a double!

[Martin KJELDSEN]

Hi @GMeur​,

Here's a simple method to convert Unicode to ASCII - This works because the Unicode array is zero terminated.

static void convertUnicodeToAscii(Unicode::Unicode* in, uint8_t* out){
    while(*in != 0){
        *out++ = (uint8_t)*in++;
    }
    *out = 0;
}

Once you have your basic char array you can now convert using regular means.

/Martin