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2011-10-15 Bruno Haible <br...@clisp.org> vasnprintf: Fix comments. * lib/vasnprintf.c (decode_long_double, decode_double): Fix comments. --- lib/vasnprintf.c.orig Sat Oct 15 12:12:49 2011 +++ lib/vasnprintf.c Sat Oct 15 12:12:46 2011 @@ -885,9 +885,9 @@ y = frexpl (x, &exp); if (!(y >= 0.0L && y < 1.0L)) abort (); - /* x = 2^exp * y = 2^(exp - LDBL_MANT_BIT) * (y * LDBL_MANT_BIT), and the + /* x = 2^exp * y = 2^(exp - LDBL_MANT_BIT) * (y * 2^LDBL_MANT_BIT), and the latter is an integer. */ - /* Convert the mantissa (y * LDBL_MANT_BIT) to a sequence of limbs. + /* Convert the mantissa (y * 2^LDBL_MANT_BIT) to a sequence of limbs. I'm not sure whether it's safe to cast a 'long double' value between 2^31 and 2^32 to 'unsigned int', therefore play safe and cast only 'long double' values between 0 and 2^16 (to 'unsigned int' or 'int', @@ -973,9 +973,9 @@ y = frexp (x, &exp); if (!(y >= 0.0 && y < 1.0)) abort (); - /* x = 2^exp * y = 2^(exp - DBL_MANT_BIT) * (y * DBL_MANT_BIT), and the + /* x = 2^exp * y = 2^(exp - DBL_MANT_BIT) * (y * 2^DBL_MANT_BIT), and the latter is an integer. */ - /* Convert the mantissa (y * DBL_MANT_BIT) to a sequence of limbs. + /* Convert the mantissa (y * 2^DBL_MANT_BIT) to a sequence of limbs. I'm not sure whether it's safe to cast a 'double' value between 2^31 and 2^32 to 'unsigned int', therefore play safe and cast only 'double' values between 0 and 2^16 (to 'unsigned int' or 'int', -- In memoriam Thomas Sankara <http://en.wikipedia.org/wiki/Thomas_Sankara>