// Ivan Novick 2007
// test apr string functions
// gcc -I/usr/include/apr-1.0 `apr-config --cppflags --cflags` -lapr-1 apr_string.c -o apr_string -std=c99

#include <stdio.h>
#include <stdlib.h>
#include <apr_pools.h>
#include <apr_strings.h>

int main(int argc, char** argv)
{
    apr_pool_t* my_pool;

    // init the apr library
    if (apr_initialize())
    {
        fprintf(stderr, "could not initialize apr \n");
        exit(1);
    }

    // create a memory pool to allocate memory from
    if (apr_pool_create(&my_pool, NULL) )
    {
        fprintf(stderr, "could not create memory pool\n");
        exit(1);
    }

    // convert int to string and allocate memory for the strings
    char* s1 = apr_itoa(my_pool, 50);
    fprintf(stdout, "%s\n", s1);

    // convert int to string and allocate memory for the strings
    char* s2 = apr_itoa(my_pool, 75);
    fprintf(stdout, "%s\n", s2);

    // convert int to string and allocate memory for the strings
    char* s3 = apr_itoa(my_pool, 100);
    fprintf(stdout, "%s\n", s3);

    // concatenate 4 strings and put result into new memory pointed to by s4
    // the final string must be NULL
    char* s4 = apr_pstrcat(my_pool, s1, s2, s3, NULL);
    fprintf(stdout, "%s\n", s4);

    // sprintf style function but the memory comes from pool
    char* text = apr_psprintf(my_pool, "Hello World %.2f %d", 10.0/3, 99);
    fprintf(stdout, "%s\n", text);

    // free all the memory from the pool
    apr_pool_destroy(my_pool);

    // to make library cleanup resources
    apr_terminate();

    return 0;
}