/* * Simple Test program for libtcc * * libtcc can be useful to use tcc as a "backend" for a code generator. */#include <stdlib.h>#include <stdio.h>#include <libtcc.h>/* this function is called by the generated code */int add(int a, int b){    return a + b;}char my_program[] = "int fib(int n)\n""{\n""    if (n <= 2)\n""        return 1;\n""    else\n""        return fib(n-1) + fib(n-2);\n""}\n""\n""int foo(int n)\n""{\n""    printf(\"Hello World!\\n\");\n""    printf(\"fib(%d) = %d\\n\", n, fib(n));\n""    printf(\"add(%d, %d) = %d\\n\", n, 2 * n, add(n, 2 * n));\n""    return 0;\n""}\n";int main(int argc, char **argv){    TCCState *s;    int (*func)(int);    unsigned long val;        s = tcc_new();    if (!s) {        fprintf(stderr, "Could not create tcc state\n");        exit(1);    }    /* MUST BE CALLED before any compilation or file loading */    tcc_set_output_type(s, TCC_OUTPUT_MEMORY);    tcc_compile_string(s, my_program);    /* as a test, we add a symbol that the compiled program can be       linked with. You can have a similar result by opening a dll       with tcc_add_dll(() and using its symbols directly. */    tcc_add_symbol(s, "add", (unsigned long)&add);        tcc_relocate(s);    tcc_get_symbol(s, &val, "foo");    func = (void *)val;    func(32);    tcc_delete(s);    return 0;}