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Instead of using endian.h that is not portable AND doesn't work with
C++, I'll just write my own using a forced union based type punning
trick.
I've decided to use little endian for the format as well: it seems to
be used by most desktop computers so it should make these functions
faster to run for most CPUs.
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Have to define _DEFAULT_SOURCE before you can use the endian
conversion functions. As most standard library headers use
features.h, and _DEFAULT_SOURCE must be defined before features.h is
included, we have to include base.h before other headers.
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Pretty simple
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Anything other than char (which can just use print.byte to print the
hex) and byte (which prints hexes anyway), all other types may be
forced to print a hex rather than a number if PRINT_HEX is 1.
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These new members are just signed versions of the previous members.
This makes type punning and usage for signed versions easier than
before (no need for memcpy).
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For each type T there is the signed version s_T
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Prints useful and pretty messages when verbose being at least 1.
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Default C just lets overflows occur for subtraction, so this macro
will default to 0 if the subtraction causes an overflow.
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