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#include <assert.h>
#include <graphviz/cgraph.h>
#include <stdio.h>
#include <stdlib.h>
int main(void) {
int ret = EXIT_SUCCESS;
#define ERR(...) \
do { \
fprintf(stderr, "%s:%d: ", __FILE__, __LINE__); \
fprintf(stderr, __VA_ARGS__); \
ret = EXIT_FAILURE; \
} while (0)
// create a new, empty graph
Agraph_t *g = agopen("foo", Agdirected, NULL);
assert(g != NULL);
// create a new reference counted string in this graph’s dictionary
char bar[] = "bar";
char *ag_bar1 = agstrdup(g, bar);
assert(ag_bar1 != NULL);
// this should not be considered an HTML-like string
if (aghtmlstr(ag_bar1))
ERR("agstrdup result incorrectly considered HTML-like\n");
// create an HTML-like string with the same content
char *ag_bar2 = agstrdup_html(g, bar);
assert(ag_bar2 != NULL);
// this should be considered an HTML-like string
if (!aghtmlstr(ag_bar2))
ERR("agstrdup_html result incorrectly not considered HTML-like\n");
// note whether ag_bar1 and ag_bar2 are actually the same pointer, so help
// anyone debugging this test case
printf("ag_bar1 == %p, ag_bar2 == %p\n", ag_bar1, ag_bar2);
// attempt the same sequence of steps but in reverse to make sure the HTML bit
// is not incorrectly shared in the other direction either
char baz[] = "baz";
char *ag_baz1 = agstrdup_html(g, baz);
assert(ag_baz1 != NULL);
if (!aghtmlstr(ag_baz1))
ERR("agstrdup_html result incorrectly not considered HTML-like\n");
char *ag_baz2 = agstrdup(g, baz);
assert(ag_baz2 != NULL);
if (aghtmlstr(ag_baz2))
ERR("agstrdup result incorrectly considered HTML-like\n");
printf("ag_baz1 == %p, ag_baz2 == %p\n", ag_baz1, ag_baz2);
agclose(g);
return ret;
}
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