roll our own from_chars

1 files changed, 7 insertions, 3 deletions

diff --git a/main.cpp b/main.cpp
index 0cc5640..9453531 100644
--- a/main.cpp
+++ b/main.cpp
@@ -26,8 +26,13 @@ constinit static sforth::forth<1024> forth {sforth::initialize<&forth>()};
 
 constinit static sforth::native_word<".", [](auto) {
     char buf[32] = {};
-    std::to_chars(buf, buf + sizeof(buf), forth.pop(), forth.base);
-    std::cout << buf << ' ';
+    auto ptr = buf + sizeof(buf);
+    auto v = forth.pop();
+    *--ptr = '\0';
+    do {
+        *--ptr = "0123456789abcdefghijklmnopqrstuvwxyz"[v % forth.base];
+    } while (v /= forth.base);
+    std::cout << ptr << ' ';
 }> dot;
 constinit static sforth::native_word<"emit", [](auto) {
     std::cout << static_cast<char>(forth.pop());
@@ -39,7 +44,6 @@ int main(int argc, const char *argv[])
 {
     std::span args (argv + 1, argc - 1);
 
-
     dot.next = std::exchange(forth.next, &emit);
 
     for (auto arg : args) {