206 lines
7.3 KiB
C
206 lines
7.3 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include <stddef.h>
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#if defined(_MSC_VER)
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#define EXPORT __declspec(dllexport)
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#define IMPORT __declspec(dllimport)
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#elif defined(__GNUC__)
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#define EXPORT __attribute__((visibility("default")))
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#define IMPORT
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#else
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#define EXPORT
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#define IMPORT
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#pragma warning Unknown dynamic link import/export semantics.
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#endif
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struct test {
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int8_t a;
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char b;
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double c;
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char d;
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void* e;
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float f;
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char* g;
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int8_t h;
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void* i;
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int j;
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int k;
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int l;
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double m;
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float n;
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};
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void print_string_pointer(char* p) {
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printf("C print_string_pointer: %s\n", p);
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}
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void print_offsets() {
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printf("C: Offset of a = %u\n", offsetof(struct test, a));
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printf("C: Offset of b = %u\n", offsetof(struct test, b));
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printf("C: Offset of c = %u\n", offsetof(struct test, c));
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printf("C: Offset of d = %u\n", offsetof(struct test, d));
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printf("C: Offset of e = %u\n", offsetof(struct test, e));
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printf("C: Offset of f = %u\n", offsetof(struct test, f));
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printf("C: Offset of g = %u\n", offsetof(struct test, g));
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printf("C: Offset of h = %u\n", offsetof(struct test, h));
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printf("C: Offset of i = %u\n", offsetof(struct test, i));
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printf("C: Offset of j = %u\n", offsetof(struct test, j));
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printf("C: Offset of k = %u\n", offsetof(struct test, k));
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printf("C: Offset of l = %u\n", offsetof(struct test, l));
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printf("C: Offset of m = %u\n", offsetof(struct test, m));
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printf("C: Offset of n = %u\n", offsetof(struct test, n));
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}
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void check_offset(int member_index, int offset) {
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if (member_index == 1) {
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int true_offset = offsetof(struct test, a);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 2) {
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int true_offset = offsetof(struct test, b);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 3) {
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int true_offset = offsetof(struct test, c);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 4) {
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int true_offset = offsetof(struct test, d);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 5) {
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int true_offset = offsetof(struct test, e);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 6) {
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int true_offset = offsetof(struct test, f);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 7) {
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int true_offset = offsetof(struct test, g);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 8) {
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int true_offset = offsetof(struct test, h);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 9) {
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int true_offset = offsetof(struct test, i);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 10) {
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int true_offset = offsetof(struct test, j);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 11) {
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int true_offset = offsetof(struct test, k);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 12) {
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int true_offset = offsetof(struct test, l);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 13) {
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int true_offset = offsetof(struct test, m);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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} else if (member_index == 14) {
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int true_offset = offsetof(struct test, n);
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printf("C: Checking that member_index : %u, is offset: %u, true offset: %u\n", member_index, offset, true_offset);
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fflush(stdout);
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assert(true_offset == offset);
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}
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}
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EXPORT struct test* init_struct(struct test* test) {
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print_offsets();
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test->a = 1;
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test->b = 'b';
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test->c = 3.0;
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test->d = 'd';
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test->e = NULL;
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test->f = 6.0;
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char* foo = malloc(sizeof("FOOBAR"));
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snprintf(foo, sizeof("FOOBAR") + 1, "FOOBAR");
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test->g = foo;
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test->h = 8;
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test->i = NULL;
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test->j = 10;
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test->k = 11;
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test->l = 12;
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test->m = 13;
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test->n = 14;
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}
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EXPORT int test_check(struct test* test) {
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print_offsets();
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printf("C: Value of a is %c\n", test->a);
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assert(test->a == 1);
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printf("C: Value of b is %c\n", test->b);
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assert(test->b == 'b');
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printf("C: Value of c is %lf\n", test->c);
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assert(test->c == 3.0);
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printf("C: Value of d is %c\n", test->d);
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assert(test->d == 'd');
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printf("C: Value of e is %s\n", test->e);
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assert(test->e == NULL);
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printf("C: Value of f is %f\n", test->f);
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assert(test->f == 6.0);
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printf("C: Value of g is %f\n", test->g);
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assert(strcmp(test->g, "foo") == 0);
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printf("C: Value of g is %i\n", test->h);
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assert(test->h == 8);
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printf("C: Value of i is %s\n", test->i);
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assert(test->i == NULL);
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printf("C: Value of j is %i\n", test->j);
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assert(test->j == 10);
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printf("C: Value of k is %i\n", test->k);
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assert(test->k == 11);
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printf("C: Value of l is %i\n", test->l);
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assert(test->l == 12);
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printf("C: Value of m is %i\n", test->m);
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assert(test->m == 13);
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printf("C: Value of n is %i\n", test->n);
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assert(test->n == 14);
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}
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EXPORT struct test* test_new() {
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print_offsets();
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struct test* t = malloc(sizeof(struct test));
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t->a = 1;
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t->b = 'b';
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t->c = 3.0;
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t->d = 'd';
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t->e = NULL;
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t->f = 6.0;
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char* foo = malloc(sizeof("FOOBAR"));
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snprintf(foo, sizeof("FOOBAR") + 1, "FOOBAR");
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t->g = foo;
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t->h = 8;
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t->i = NULL;
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t->j = 10;
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t->k = 11;
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t->l = 12;
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t->m = 13;
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t->n = 14;
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return t;
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}
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