Update lsp configuration clang

init.lua

@@ -100,6 +100,7 @@ vim.g.have_nerd_font = false
 
 -- Make line numbers default
 vim.opt.number = true
+vim.opt.relativenumber = true
 -- You can also add relative line numbers, to help with jumping.
 --  Experiment for yourself to see if you like it!
 -- vim.opt.relativenumber = true
@@ -609,7 +610,9 @@ require('lazy').setup({
         'stylua', -- Used to format Lua code
       })
       require('mason-tool-installer').setup { ensure_installed = ensure_installed }
-      require('lspconfig').clangd.setup {}
+      require('lspconfig').clangd.setup {
+        capabilities = vim.tbl_deep_extend('force', {}, capabilities),
+      }
       require('mason-lspconfig').setup {
         handlers = {
           function(server_name)
@@ -644,7 +647,7 @@ require('lazy').setup({
         -- Disable "format_on_save lsp_fallback" for languages that don't
         -- have a well standardized coding style. You can add additional
         -- languages here or re-enable it for the disabled ones.
-        local disable_filetypes = { c = true, cpp = true }
+        local disable_filetypes = { c = false, cpp = true }
         return {
           timeout_ms = 500,
           lsp_fallback = not disable_filetypes[vim.bo[bufnr].filetype],
@@ -718,10 +721,13 @@ require('lazy').setup({
         -- No, but seriously. Please read `:help ins-completion`, it is really good!
         mapping = cmp.mapping.preset.insert {
           -- Select the [n]ext item
-          ['<C-n>'] = cmp.mapping.select_next_item(),
           -- Select the [p]revious item
+          ['<C-n>'] = cmp.mapping.select_next_item(),
           ['<C-p>'] = cmp.mapping.select_prev_item(),
 
+          ['<Tab>'] = cmp.mapping.select_next_item(),
+          ['<S-Tab>'] = cmp.mapping.select_prev_item(),
+
           -- Scroll the documentation window [b]ack / [f]orward
           ['<C-b>'] = cmp.mapping.scroll_docs(-4),
           ['<C-f>'] = cmp.mapping.scroll_docs(4),
@@ -729,13 +735,11 @@ require('lazy').setup({
           -- Accept ([y]es) the completion.
           --  This will auto-import if your LSP supports it.
           --  This will expand snippets if the LSP sent a snippet.
-          ['<C-y>'] = cmp.mapping.confirm { select = true },
+          ['<space>'] = cmp.mapping.confirm { select = true },
 
           -- If you prefer more traditional completion keymaps,
           -- you can uncomment the following lines
           --['<CR>'] = cmp.mapping.confirm { select = true },
-          --['<Tab>'] = cmp.mapping.select_next_item(),
-          --['<S-Tab>'] = cmp.mapping.select_prev_item(),
 
           -- Manually trigger a completion from nvim-cmp.
           --  Generally you don't need this, because nvim-cmp will display