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char elements
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A single 8-bit byte aligned on a byte boundary.
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short integers
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Halfword (two bytes or 16 bits), aligned on a two-byte boundary
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int
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32 bits (four bytes or one word), aligned on a four-byte boundary
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long
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32 bits on v8 and x86 (four bytes or one word), aligned on a four-byte
boundary
64 bits on v9 (eight bytes or two words) aligned on an eight-byte boundary)
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pointer
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32 bits on v8 and x86 (four bytes or one word), aligned on a four-byte
boundary
64 bits on v9 (eight bytes or two words) aligned on an eight-byte boundary)
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long long [long long is not available in -Xc mode
with -xc99=none.]
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(SPARC) 64 bits (eight bytes or two words), aligned on an eight-byte
boundary
(x86) 64 bits (eight bytes or two words), aligned
on a four-byte boundary
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float
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32 bits (four bytes or one word), aligned on a four-byte boundary. A float has a sign bit, 8-bit exponent, and 23-bit
fraction.
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double
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64 bits (eight bytes or two words), aligned on an eight-byte boundary
(SPARC) or aligned on a four-byte boundary (x86). A double element has a sign bit, an 11-bit exponent
and a 52-bit fraction.
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long double
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v8 (SPARC) 128 bits (16 bytes or four words), aligned on an eight-byte
boundary. A long double element has
a sign bit, a 15-bit exponent and a 112-bit fraction.
v9 (SPARC) 128 bits (16 bytes or four words), aligned on a 16 byte boundary.
A long double element has a sign bit,
a 15-bit exponent and a 112-bit fraction.
(x86) 96 bits (12 bytes or three words) aligned
on a four-byte boundary. A long double element
has a sign bit, a 16-bit exponent, and a 64-bit fraction.
16 bits are unused.
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