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Produced by enquire version 5.1a, CWI, Amsterdam http://www.cwi.nl/~steven/enquire.html Compiler claims to be ANSI C level 1 Compiler names are at least 64 chars long Preprocessor names are at least 64 long SIZES char = 8 bits, signed short=16 int=32 long=32 float=32 double=64 bits long double=96 bits char*=32 bits int* =32 bits func*=32 bits Type size_t is unsigned int/long Type wchar_t is signed int/long ALIGNMENTS char=1 short=2 int=4 long=4 float=4 double=4 long double=4 char*=4 int*=4 func*=4 CHARACTER ORDER short: BA int: DCBA long: DCBA PROPERTIES OF POINTERS Char and int pointer formats seem identical Char and function pointer formats seem identical Strings are shared Type ptrdiff_t is signed int/long Dereferencing NULL causes a trap PROPERTIES OF INTEGRAL TYPES Overflow of a short does not generate a trap Maximum short = 32767 (= 2**15-1) Minimum short = -32768 Overflow of an int does not generate a trap Maximum int = 2147483647 (= 2**31-1) Minimum int = -2147483648 Overflow of a long does not generate a trap Maximum long = 2147483647 (= 2**31-1) Minimum long = -2147483648 Maximum unsigned short = 65535 Maximum unsigned int = 4294967295 Maximum unsigned long = 4294967295 PROMOTIONS unsigned short promotes to signed int/long long+unsigned gives unsigned int/long PROPERTIES OF FLOAT Base = 2 Significant base digits = 24 (= at least 6 decimal digits) Arithmetic rounds towards nearest Tie breaking rounds to even Smallest x such that 1.0-base**x != 1.0 = -24 Smallest x such that 1.0-x != 1.0 = 2.98023259e-08 Smallest x such that 1.0+base**x != 1.0 = -23 Smallest x such that 1.0+x != 1.0 = 5.96046519e-08 (Above number + 1.0) - 1.0 = 1.19209290e-07 Number of bits used for exponent = 8 Minimum normalised exponent = -126 Minimum normalised positive number = 1.17549435e-38 The smallest numbers are not kept normalised Smallest unnormalised positive number = 1.40129846e-45 Maximum exponent = 128 Maximum number = 3.40282347e+38 Overflow doesn't seem to generate a trap There is an 'infinite' value Divide by zero doesn't generate a trap Arithmetic uses a hidden bit It looks like single length IEEE format PROPERTIES OF DOUBLE Base = 2 Significant base digits = 53 (= at least 15 decimal digits) Arithmetic rounds towards nearest Tie breaking rounds to even Smallest x such that 1.0-base**x != 1.0 = -53 Smallest x such that 1.0-x != 1.0 = 5.5538256285569977e-17 Smallest x such that 1.0+base**x != 1.0 = -52 Smallest x such that 1.0+x != 1.0 = 1.1107651257113995e-16 (Above number + 1.0) - 1.0 = 2.2204460492503131e-16 Number of bits used for exponent = 11 Minimum normalised exponent = -1022 Minimum normalised positive number = 2.2250738585072014e-308 The smallest numbers are not kept normalised Smallest unnormalised positive number = 4.9406564584124654e-324 Maximum exponent = 1024 Maximum number = 1.7976931348623157e+308 Overflow doesn't seem to generate a trap There is an 'infinite' value Divide by zero doesn't generate a trap Arithmetic uses a hidden bit It looks like double length IEEE format PROPERTIES OF LONG DOUBLE Base = 2 Significant base digits = 64 (= at least 18 decimal digits) Arithmetic rounds towards nearest Tie breaking rounds to even Smallest x such that 1.0-base**x != 1.0 = -64 Smallest x such that 1.0-x != 1.0 = 2.71050543121376108531e-20 Smallest x such that 1.0+base**x != 1.0 = -63 Smallest x such that 1.0+x != 1.0 = 5.42101086242752217063e-20 (Above number + 1.0) - 1.0 = 1.08420217248550443401e-19 Number of bits used for exponent = 15 Minimum normalised exponent = -16382 Minimum normalised positive number = 3.36210314311209350626e-4932 The smallest numbers are not kept normalised Smallest unnormalised positive number = 3.64519953188247460253e-4951 Maximum exponent = 16384 Maximum number = 1.18973149535723176502e+4932 Overflow doesn't seem to generate a trap There is an 'infinite' value Divide by zero doesn't generate a trap Only 79 of the 96 bits of a long double are actually used It doesn't look like IEEE format Float expressions are evaluated in long double precision Double expressions are evaluated in long double precision Long double expressions are evaluated in long double precision Memory mallocatable ~= 3144 Mbytes