build : fix most gcc and clang warnings (#2861)

* fix most gcc and clang warnings

* baby-llama : remove commented opt_params_adam

* fix some MinGW warnings

* fix more MinGW warnings

3 files changed, 10 insertions, 11 deletions

diff --git a/examples/baby-llama/baby-llama.cpp b/examples/baby-llama/baby-llama.cpp
index 6fa55b31..a99ece9a 100644
--- a/examples/baby-llama/baby-llama.cpp
+++ b/examples/baby-llama/baby-llama.cpp
@@ -1617,15 +1617,10 @@ int main(int argc, char ** argv) {
 
         float error_before_opt = ggml_get_f32_1d(e, 0);
 
-        struct ggml_opt_params opt_params_adam = ggml_opt_default_params(GGML_OPT_ADAM);
         struct ggml_opt_params opt_params_lbfgs = ggml_opt_default_params(GGML_OPT_LBFGS);
-        opt_params_adam.print_forward_graph = false;
-        opt_params_adam.print_backward_graph = false;
         opt_params_lbfgs.print_forward_graph = false;
         opt_params_lbfgs.print_backward_graph = false;
-        opt_params_adam.adam.n_iter = 16;
         opt_params_lbfgs.lbfgs.n_iter = 16;
-        // ggml_opt(ctx0, opt_params_adam, e);
         ggml_opt(ctx0, opt_params_lbfgs, e);
         //
         ggml_build_forward_expand(&gf, e);
diff --git a/examples/beam-search/beam-search.cpp b/examples/beam-search/beam-search.cpp
index 42c7c725..4d021434 100644
--- a/examples/beam-search/beam-search.cpp
+++ b/examples/beam-search/beam-search.cpp
@@ -22,7 +22,9 @@
 #include <unistd.h>
 #elif defined (_WIN32)
 #define WIN32_LEAN_AND_MEAN
-#define NOMINMAX
+#ifndef NOMINMAX
+#   define NOMINMAX
+#endif
 #include <windows.h>
 #include <signal.h>
 #endif
@@ -73,7 +75,7 @@ void beam_search_callback(void * callback_data_ptr, llama_beams_state beams_stat
         assert(0u < beams_state.n_beams);
         const llama_token * tokens = beams_state.beam_views[0].tokens;
         std::copy(tokens, tokens + n, callback_data.response.end() - n);
-        printf("%lu", n);
+        printf("%zu", n);
     }
     fflush(stdout);
 #if 1 // DEBUG: print current beams for this iteration
@@ -145,7 +147,7 @@ int main(int argc, char ** argv)
 
     if (tokens_list.size() > max_tokens_list_size)
     {
-        fprintf( stderr , "%s: error: prompt too long (%lu tokens, max %lu)\n" ,
+        fprintf( stderr , "%s: error: prompt too long (%zu tokens, max %zu)\n" ,
              __func__ , tokens_list.size() , max_tokens_list_size );
         return 1;
     }
diff --git a/examples/server/server.cpp b/examples/server/server.cpp
index b485a5ea..09eac2ec 100644
--- a/examples/server/server.cpp
+++ b/examples/server/server.cpp
@@ -17,6 +17,8 @@
 #include "completion.js.hpp"
 #include "json-schema-to-grammar.mjs.hpp"
 
+#include <cstddef>
+
 #ifndef SERVER_VERBOSE
 #define SERVER_VERBOSE 1
 #endif
@@ -1038,7 +1040,7 @@ static json format_timings(llama_server_context &llama)
 {
     const auto timings = llama_get_timings(llama.ctx);
 
-    assert(timings.n_eval == llama.num_tokens_predicted);
+    assert(timings.n_eval == ptrdiff_t(llama.num_tokens_predicted));
 
     return json{
         {"prompt_n", timings.n_p_eval},
@@ -1239,7 +1241,7 @@ void beam_search_callback(void * callback_data, llama_beams_state beams_state) {
         const llama_token * tokens = beams_state.beam_views[0].tokens;
         const auto map = [](llama_token tok) { return completion_token_output{{},tok}; };
         std::transform(tokens, tokens + n, llama.generated_token_probs.end() - n, map);
-        printf("%lu", n);
+        printf("%zu", n);
     }
     fflush(stdout);
 #if 0 // DEBUG: print current beams for this iteration
@@ -1548,7 +1550,7 @@ int main(int argc, char **argv)
 
     svr.set_exception_handler([](const Request &, Response &res, std::exception_ptr ep)
                               {
-        const auto * fmt = "500 Internal Server Error\n%s";
+        const char fmt[] = "500 Internal Server Error\n%s";
         char buf[BUFSIZ];
         try {
             std::rethrow_exception(std::move(ep));