Sizeof function goes wrong !

[renew]

Hi, people.
Very simple code here:

Code: Select all

Write_String_LCD(0, 0, "HELLO world !@#$%^&*()_+");

void Write_String_LCD(char xposition, char yposition, char *string){
    char i, s;
    s = sizeof(string));
    Set_Display_XYAddr(xposition, yposition);	// row, column
    //
    LCD_CS = 0;
    for(i=0; i<s; i++){
        Write_Char(string[i], 1);
    }
    LCD_CS = 1;
    return;
}

I see on the display only first 2 sighnes "HE". When I assign s = 24 I see all the string. What is wrong with the sizeof function ?
Is there other way how to know a size of the string ?

[VCC]

Hi,
Sizeof may return the size of a pointer in this case. See if you get better results with strlen function.
HTH

[renew]

Thanks, strlen works good.