volatile char* sevensegment_char_value;

void ss_load_char(volatile char *digits) {
    ...
    int l=strlen(digits);
    ...
 }

 ss_load_char(sevensegment_char_value);

In the above example I've got warning from avr-gcc compiler

Warning 6   passing argument 1 of 'strlen' discards 'volatile' qualifier from pointer target type [enabled by default]

So I have to somehow copy the value from volatile to non-volatile var? What is the safe workaround?

c volatile
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