The C struct has unsigned longs mostly. Each of these is 32 bytes, right?
I would not bet on that. The C99 standard defines int as having the natural size suggested by the architecture of the execution environment (large enough to contain any value in the range INT_MIN to INT_MAX as defined in the header <limits.h>)., so an int needs at least 16 bits. Other integer types, including unsigned long, are definied similary. C requires a minimum range, but no fixed number of bits. The implementation may choose bit sizes as required by the machine. So most C compilers on 32 bit systems actually define int as a 32 bit number, long int is typically 32 or 64 bit. But if you run on a 36 bit architecture without a 32 bit emulation layer, int should use 36 bit, long int may use 72 bit, and long long int could use 144 bit. Things get more complicated on 64 bit systems that attempt to support 32 bit software, see http://en.wikipedia.org/wiki/64-bit_computing#64-bit_data_models. Note that UNICOS defines all basic integer types as 64 bit.
See also http://stackoverflow.com/questions/589575/size-of-int-long-etc, http://en.wikipedia.org/wiki/C_data_types.
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||