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Full Discussion: help with data type sizes
Top Forums Programming help with data type sizes Post 302488033 by omega666 on Friday 14th of January 2011 04:18:36 PM
Old 01-14-2011
Error help with data type sizes

i'm using a C program and running it on a linux server, i got 2 adressess of 2 variables, and 2 addresses of 2 chars, and compared it. and got the size of a int and the size of a char.
why is a size of a int (4 bytes) bigger then the size of a char (1 byte)?

also if i do &a-&b i get 1, but if i get the difference of the address i get 4, why is that?
 

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ustrzncpy(3alleg4)						  Allegro manual						ustrzncpy(3alleg4)

NAME
ustrzncpy - Copies a string into another one, specifying size. Allegro game programming library. SYNOPSIS
#include <allegro.h> char *ustrzncpy(char *dest, int size, const char *src, int n); DESCRIPTION
This function is like ustrzcpy() except that no more than `n' characters from `src' are copied into `dest' whose length in bytes is speci- fied by `size' and which is guaranteed to be null-terminated even if `src' is bigger than `size'. If `src' is shorter than `n' characters, null characters are appended to `dest' as padding until `n' characters have been written. In any case, `dest' is guaranteed to be null-ter- minated. Note that, even for empty strings, your destination string must have at least enough bytes to store the terminating null character of the string, and your parameter `size' must reflect this. Otherwise, the debug version of Allegro will abort at an assertion, and the release version of Allegro will overrun the destination buffer. RETURN VALUE
The return value is the value of `dest'. SEE ALSO
uconvert(3alleg4), ustrzcpy(3alleg4), ustrncpy(3alleg4), exkeys(3alleg4) Allegro version 4.4.2 ustrzncpy(3alleg4)
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