Some safety with move arrays, small refactor appendchar

1 files changed, 14 insertions, 0 deletions

diff --git a/src/solvers/solutions.h b/src/solvers/solutions.h
new file mode 100644
index 0000000..1396210
--- /dev/null
+++ b/src/solvers/solutions.h
@@ -0,0 +1,14 @@
+#define MAXLEN 20
+
+STATIC bool appendchar(size_t n, char [n], size_t *, char);
+
+STATIC bool
+appendchar(size_t n, char s[n], size_t *used, char c)
+{
+        if (n <= *used)
+                return false;
+
+        s[(*used)++] = c;
+
+        return true;
+}