Bubblesort Muster

#include <stdlib.h>
#include <stdio.h>
#include <inttypes.h>

#define LEN 128

extern  void bs   (int64_t, int32_t*);
        void bs_c (int64_t, int32_t*);
        void print(int64_t, int32_t*);

int main(int argc, char** argv)
{
    int32_t buffer[LEN];
    int32_t len = argc - 1;

    for (int64_t i = 1; i < argc; i++)
        buffer[i-1] = atoi(argv[i]);

    print(len, buffer);
    bs(len, buffer);
    print(len, buffer);

    return EXIT_SUCCESS;
}

void bs_c(int64_t len, int32_t* buffer)
{
    for(int64_t i = len - 1; i > 0; i--)
        for (int64_t j = 0; j < i; j++)
            if (buffer[j] > buffer[j+1])
            {
                int64_t tmp = buffer[j];
                buffer[j]   = buffer[j+1];
                buffer[j+1] = tmp;
            }
}

void print(int64_t len, int32_t* buffer)
{
    printf("(");
    for (int64_t i = 0; i < len -1; i++)
        printf("%"PRIi32", ", buffer[i]);
    printf("%"PRIi32")\n", buffer[len-1]);
}