added personal libraries to git tracking

1 files changed, 31 insertions, 0 deletions

diff --git a/strings/strings.cpp b/strings/strings.cpp
new file mode 100644
index 0000000..4c8486f
--- /dev/null
+++ b/strings/strings.cpp
@@ -0,0 +1,31 @@
+u64 CstrSize(const char* cstr)
+{
+  u8 *iter = (u8*)cstr;
+  u64 size = 0;
+  for(;*iter != 0; *iter++) {
+    size += 1;
+  }
+
+  return size;
+}
+
+struct str8 Str8(u8 *string, u64 size)
+{
+  struct str8 result = {string, size};
+  return result;
+}
+
+struct res_str8 Str8InitCstr(struct arena *a, const char* cstr)
+{
+  u64 cstr_size = CstrSize(cstr);
+  struct res_void cstr_res = arena_alloc(a, cstr_size);
+  u8 *str = (u8 *)cstr_res.memory;
+  u64 str_size = cstr_res.bytes_count;
+  
+  MemCopy((void*)str, (void*)cstr, str_size*sizeof(u8));
+
+  struct res_str8 result = {};
+  result.string = Str8(str, str_size);
+  result.bytes_count = str_size;
+  return result;
+}