added multimap example.

1 files changed, 1 insertions, 0 deletions

diff --git a/stc/cstr.h b/stc/cstr.h
index c9f6ccfd..d24e112e 100644
--- a/stc/cstr.h
+++ b/stc/cstr.h
@@ -320,6 +320,7 @@ cstr_replace_all(cstr* self, const char* find, const char* replace) {
         cstr_append(&out, replace);

         from = pos + find_len; ++n;

     }

+    if (!n) return 0;

     cstr_append(&out, self->str + from);

     cstr_del(self); *self = out;

     return n;