Merge branch 'master' of github.com:omnisci3nce/celeritas-core

1 files changed, 30 insertions, 0 deletions

diff --git a/examples/standard_lib/ex_std.c b/examples/standard_lib/ex_std.c
new file mode 100644
index 0000000..9d474de
--- /dev/null
+++ b/examples/standard_lib/ex_std.c
@@ -0,0 +1,30 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "file.h"
+#include "str.h"
+
+int main() {
+  // Examples of how to work with arenas and strings
+  size_t arena_size = 1024;
+  arena scratch = arena_create(malloc(arena_size), arena_size);
+  arena* a = &scratch;
+
+  str8 hello = str8lit("Hello World");
+
+  // this works but we should be careful because str8 is not *guaranteed* to point to
+  // a null-terminated string
+  printf("String before: '%s' (null-terminated: %s) \n ", hello.buf,
+         str8_is_null_term(hello) ? "true" : "false");
+
+  char* c = str8_to_cstr(&scratch, hello);
+
+  printf("String after: %s\n", c);
+
+  str8_opt test_file = str8_from_file(&scratch, str8lit("assets/shaders/ui_rect.vert"));
+  if (test_file.has_value) {
+    printf("Contents: %.*s \n", (int)test_file.contents.len, test_file.contents.buf);
+    printf("Null-terminated: %s\n", str8_is_null_term(test_file.contents) ? "true" : "false");
+  }
+
+  return 0;
+}