feat: cookbooks ready; clean c codes

Author: Charliechen114514

.log

@@ -0,0 +1,2 @@
+[1/2] Building C object CMakeFiles/ex1_dynamic_matrix.dir/ex1_dynamic_matrix.c.o
+[2/2] Linking C executable ex1_dynamic_matrix

.pre-commit-config.yaml

@@ -26,6 +26,13 @@ repos:
         always_run: true
         pass_filenames: false
 
+      - id: validate-frontmatter
+        name: Validate frontmatter
+        entry: python3 scripts/validate_frontmatter.py
+        language: system
+        files: '^documents/.*\.md$'
+        pass_filenames: false
+
   # Check for added large files
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.5.0

code/volumn_codes/vol1/c_tutorials/01-program-structure/CMakeLists.txt

@@ -2,4 +2,3 @@ cmake_minimum_required(VERSION 3.20)
 project(lesson_02A_data_types C)
 
 add_executable(ex1_sizeof_detective ex1_sizeof_detective.c)
-add_executable(ex2_integer_overflow ex2_integer_overflow.c)

code/volumn_codes/vol1/c_tutorials/01-program-structure/ex1_multi_file/CMakeLists.txt

@@ -1,21 +1,24 @@
-#include <stdio.h>
 #include <stdint.h>
+#include <stdio.h>
+// #include <stddef.h>
+
+int main() {
+    // 基本类型
+    printf("sizeof(char)      = %zu bytes\n", sizeof(char));
+    printf("sizeof(short)     = %zu bytes\n", sizeof(short));
+    printf("sizeof(int)       = %zu bytes\n", sizeof(int));
+    printf("sizeof(long)      = %zu bytes\n", sizeof(long));
+    printf("sizeof(long long) = %zu bytes\n", sizeof(long long));
 
-#define PRINT_SIZEOF(type) printf("sizeof(%-15s) = %zu bytes\n", #type, sizeof(type))
+    // 定长整数类型 (需包含 <stdint.h>)
+    printf("sizeof(int8_t)    = %zu bytes\n", sizeof(int8_t));
+    printf("sizeof(uint8_t)   = %zu bytes\n", sizeof(uint8_t));
+    printf("sizeof(int32_t)   = %zu bytes\n", sizeof(int32_t));
+    printf("sizeof(uint32_t)  = %zu bytes\n", sizeof(uint32_t));
+    printf("sizeof(int64_t)   = %zu bytes\n", sizeof(int64_t));
 
-int main(void)
-{
-    PRINT_SIZEOF(char);
-    PRINT_SIZEOF(short);
-    PRINT_SIZEOF(int);
-    PRINT_SIZEOF(long);
-    PRINT_SIZEOF(long long);
-    PRINT_SIZEOF(int8_t);
-    PRINT_SIZEOF(uint8_t);
-    PRINT_SIZEOF(int32_t);
-    PRINT_SIZEOF(uint32_t);
-    PRINT_SIZEOF(int64_t);
-    PRINT_SIZEOF(size_t);
+    // size_t 类型 (需包含<stdio.h>、 <stddef.h> 或 <stdlib.h>)
+    printf("sizeof(size_t)    = %zu bytes\n", sizeof(size_t));
 
     return 0;
 }