История изменений

#include <stddef.h>
#define OLOLO 2
/*
 *  h_pose : ptr addres
 *  q_pose : ptr addres
 *  h_lens : number_elements * sizeof(element_type)
 *  q_lens : number_elements * sizeof(element_type)
 */
unsigned char 
is_contained(ptrdiff_t h_pose, size_t h_lens, ptrdiff_t q_pose, size_t q_lens)
{
   return ((q_pose >= h_pose) && ((h_pose+q_lens) <= (h_pose + h_lens)));
}

int main(int argc , char * argv[])
{
    if(argc > 1)
    {
        switch (argv[1][0]-'0')
        {
            case 1: return is_contained(5,50,5,50);
            case 2: return is_contained(5,50,4,49);
            case 3: return is_contained(5,50,6,49);
            case 4: return is_contained(5,50,5,51);
            case 5: return is_contained(5,50,4,51);
        }
    }
    return OLOLO;
}

dron@gnu:~$ gcc -Wall -Wextra -std=c89 -pedantic test.c
dron@gnu:~$ ./a.out 1 ; echo $?
1
dron@gnu:~$ ./a.out 2 ; echo $?
0
dron@gnu:~$ ./a.out 3 ; echo $?
1
dron@gnu:~$ ./a.out 4 ; echo $?
0
dron@gnu:~$ ./a.out 5 ; echo $?
0

#include <stddef.h>
#define OLOLO 2
/*
 *  h_pose : ptr addres
 *  q_pose : ptr addres
 *  h_lens : number_elements * sizeof(element_type)
 *  q_lens : number_elements * sizeof(element_type)
 */
unsigned char 
is_contained(ptrdiff_t h_pose, size_t h_lens, ptrdiff_t q_pose, size_t q_lens)
{
   return ((q_pose >= h_pose) && ((h_pose+q_lens) <= (h_pose + h_lens)));
}

int main(int argc , char * argv[])
{
    if(argc > 1)
    {
        switch (argv[1][0]-'0')
        {
            case 1: return is_contained(5,50,5,50);
            case 2: return is_contained(5,50,4,49);
            case 3: return is_contained(5,50,6,49);
            case 4: return is_contained(5,50,5,51);
            case 5: return is_contained(5,50,4,51);
        }
    }
    return OLOLO;
}

dron@gnu:~$ gcc -Wall -Wextra -std=c89 -pedantic test.c
dron@gnu:~$ ./a.out 1 ; echo $?
1
dron@gnu:~$ ./a.out 2 ; echo $?
0
dron@gnu:~$ ./a.out 3 ; echo $?
1
dron@gnu:~$ ./a.out 4 ; echo $?
0
dron@gnu:~$ ./a.out 5 ; echo $?
0