Add function to check for empty string.

1 files changed, 2 insertions, 0 deletions

diff --git a/cstring/include/cstring.h b/cstring/include/cstring.h
index de85b43..991d742 100644
--- a/cstring/include/cstring.h
+++ b/cstring/include/cstring.h
@@ -94,6 +94,8 @@
     return (a.length == strlen(b)) && strncmp(a.str, b, a.length) == 0;   \
   }                                                                       \
                                                                           \
+  static inline bool STRING##_empty(STRING a) { return a.length == 0; }   \
+                                                                          \
   static inline STRING STRING##_itoa(int n) {                             \
     STRING    str     = (STRING){0};                                      \
     const int written = snprintf(str.str, SIZE, "%d", n);                 \