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/fatfs-2.7.6/
Dff.c6734 int e = 0, m = 0; local
6761 e = ilog10(val);
6762 if (e > 99 || prec + 7 >= SZ_NUM_BUF) { /* Buffer overflow or E > +99? */
6765 if (e < -99) e = -99;
6766 val /= i10x(e); /* Normalize */
6781 if (e < 0) {
6782 e = 0 - e; *buf++ = '-';
6786 *buf++ = (char)('0' + e / 10);
6787 *buf++ = (char)('0' + e % 10);