vtable translation unit for thread pool + warns

build.cc

@@ -28,6 +28,7 @@ namespace fs = ostd::filesystem;
 #include "src/io.cc"
 #include "src/process.cc"
 #include "src/filesystem.cc"
+#include "src/thread_pool.cc"
 #include "src/channel.cc"
 #include "src/string.cc"
 #include "src/argparse.cc"

gen_unicode.cc

@@ -31,7 +31,7 @@ inline code_t hex_to_code(string_range hs) {
         if (!std::isxdigit(c |= 32)) {
             throw std::runtime_error{"malformed code point"};
         }
-        ret = ret * 16 + (c - ((c > '9') ? ('a' - 10) : '0'));
+        ret = ret * 16 + code_t(c - ((c > '9') ? ('a' - 10) : '0'));
     }
     return ret;
 }
@@ -62,7 +62,7 @@ struct parse_state {
                 bits[n] = line;
                 break;
             }
-            bits[n++] = line.slice(0, sc.data() - line.data());
+            bits[n++] = line.slice(0, std::size_t(sc.data() - line.data()));
             sc.pop_front();
             line = sc;
         }
@@ -145,8 +145,8 @@ struct parse_state {
         ](std::size_t i, std::size_t offs) {
             int off = (!int(offs) * 2) - 1;
             return match_pair(i, 2) && (cases.empty() || (
-                (cases[i + 1] == (codes[i + 1] + off)) &&
-                (cases[i    ] == (codes[i    ] + off))
+                (cases[i + 1] == code_t(std::int32_t(codes[i + 1]) + off)) &&
+                (cases[i    ] == code_t(std::int32_t(codes[i    ]) + off))
             ));
         };
 

ostd/platform.hh

@@ -209,6 +209,9 @@
 #  endif
 #  define OSTD_LOCAL
 #else
+#  if defined(OSTD_BUILD_LIB) || defined(OSTD_BUILD_DLL)
+/* -Wunused-macros */
+#  endif
 #  if __GNUC__ >= 4
 #    define OSTD_EXPORT __attribute__((visibility("default")))
 #    define OSTD_LOCAL  __attribute__((visibility("hidden")))

ostd/thread_pool.hh

@@ -36,7 +36,7 @@ namespace ostd {
 namespace detail {
     struct tpool_func_base {
         tpool_func_base() {}
-        virtual ~tpool_func_base() {}
+        virtual ~tpool_func_base();
         virtual void clone(tpool_func_base *func) = 0;
         virtual void call() = 0;
     };

src/thread_pool.cc

@@ -0,0 +1,16 @@
+/* Thread pool implementation bits.
+ *
+ * This file is part of libostd. See COPYING.md for futher information.
+ */
+
+#include "ostd/thread_pool.hh"
+#include "ostd/channel.hh"
+
+namespace ostd {
+namespace detail {
+
+/* place the vtable here */
+tpool_func_base::~tpool_func_base() {}
+
+} /* namespace detail */
+} /* namespace ostd */