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@ufocia ufocia commented Mar 27, 2019

C arrays are 0 indexed, accordingly writing to array[255] actually writes to the 256th position, which is naturally out of bounds of a 255 item array. increasing the size of the array to 256 corrects that error. Also, 0 is an int and requires a cast into a char, '\0' is just a cleaner (a more syntactically pedantic) way to achieve the same end.

C arrays are 0 indexed, accordingly writing to array[255] actually writes to the 256th position, which is naturally out of bounds of a 255 item array. increasing the size of the array to 256 corrects that error. Also, 0 is an int and requires a cast into a char, '\0' is just a cleaner (a more syntactically pedantic) way to achieve the same end.
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Good catch.

@earlephilhower earlephilhower merged commit f139519 into esp8266:master Mar 28, 2019
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4 participants