FLT_DECIMAL_DIG
#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */