fix(reference/{cstdio,cstdlib}): C互換ヘッダの関数・型は std:: をつけなきゃダメ!

Author: akinomyoga

reference/cstdio/eof.md

@@ -16,18 +16,18 @@
 #include <cstdio>
 int main() {
   int c;
-  while ((c = getchar()) != EOF) {
-    putchar(c);
+  while ((c = std::getchar()) != EOF) {
+    std::putchar(c);
   }
   if (c == EOF)
-    puts("REACHED END");
+    std::puts("REACHED END");
 }
 
 ```
 * EOF[color ff0000]
-* getchar[link /reference/cstdio/getchar.md]
-* putchar[link /reference/cstdio/putchar.md]
-* puts[link /reference/cstdio/puts.md]
+* std::getchar[link /reference/cstdio/getchar.md]
+* std::putchar[link /reference/cstdio/putchar.md]
+* std::puts[link /reference/cstdio/puts.md]
 
 ### 入力
 ```

reference/cstdio/fclose.md

@@ -28,13 +28,13 @@ namespace std {
 #include <cstdio>
 
 int main() {
-  FILE *fp = fopen("test.txt", "w");
-  fclose(fp);
+  std::FILE *fp = std::fopen("test.txt", "w");
+  std::fclose(fp);
 }
 ```
-* fclose[color ff0000]
-* fopen[link /reference/cstdio/fopen.md]
-* FILE[link /reference/cstdio/file.md]
+* std::fclose[color ff0000]
+* std::fopen[link /reference/cstdio/fopen.md]
+* std::FILE[link /reference/cstdio/file.md]
 
 ## 処理系
 - [Clang](/implementation.md#clang): ??

reference/cstdio/fgetc.md

@@ -23,13 +23,13 @@ namespace std {
 
 int main() {
   int c;
-  while ((c = fgetc(stdin)) != EOF) {
-    putc(c, stdout);
+  while ((c = std::fgetc(stdin)) != EOF) {
+    std::putc(c, stdout);
   }
 }
 ```
-* fgetc[color ff0000]
-* putc[link /reference/cstdio/putc.md]
+* std::fgetc[color ff0000]
+* std::putc[link /reference/cstdio/putc.md]
 
 ### 入力
 ```

reference/cstdio/fgets.md

@@ -25,12 +25,12 @@ namespace std {
 
 int main() {
   char str[10];
-  fgets(str, sizeof(str), stdin);
-  puts(str);
+  std::fgets(str, sizeof(str), stdin);
+  std::puts(str);
 }
 ```
-* fgets[color ff0000]
-* puts[link /reference/cstdio/puts.md]
+* std::fgets[color ff0000]
+* std::puts[link /reference/cstdio/puts.md]
 
 ### 入力
 ```

reference/cstdio/file.md

@@ -4,7 +4,9 @@
 * class[meta id-type]
 
 ```cpp
-typedef /* unspecified */ FILE;
+namespace std {
+  typedef /* unspecified */ FILE;
+}
 ```
 
 ## 概要

reference/cstdio/fopen.md

@@ -24,19 +24,19 @@ namespace std {
 #include <cstdio>
 
 int main() {
-  FILE *fp = fopen("test.txt", "w");
+  std::FILE *fp = std::fopen("test.txt", "w");
   if (fp == NULL) {
-    printf("ファイルを開けませんでした\n");
+    std::printf("ファイルを開けませんでした\n");
     return 1;
   }
-  fclose(fp);
+  std::fclose(fp);
   return 0;
 }
 ```
-* fopen[color ff0000]
-* fclose[link /reference/cstdio/fclose.md]
-* FILE[link /reference/cstdio/file.md]
-* printf[link /reference/cstdio/printf.md]
+* std::fopen[color ff0000]
+* std::fclose[link /reference/cstdio/fclose.md]
+* std::FILE[link /reference/cstdio/file.md]
+* std::printf[link /reference/cstdio/printf.md]
 
 ## 処理系
 - [Clang](/implementation.md#clang): ??

reference/cstdio/fputc.md

@@ -24,10 +24,10 @@ namespace std {
 #include <cstdio>
 
 int main() {
-  fputc('a', stdout);
+  std::fputc('a', stdout);
 }
 ```
-* fputc[color ff0000]
+* std::fputc[color ff0000]
 * stdout[link /reference/cstdio/stdout.md]
 
 ### 出力

reference/cstdio/fputs.md

@@ -20,7 +20,7 @@ namespace std {
 #include <cstdio>
 
 int main() {
-  fputs("Hello, World!\n", stdout);
+  std::fputs("Hello, World!\n", stdout);
   return 0;
 }
 ```

reference/cstdio/getc.md

@@ -4,7 +4,9 @@
 * function[meta id-type]
 
 ```cpp
-int getc(FILE* stream);
+namespace std {
+  int getc(FILE* stream);
+}
 ```
 
 ## 概要
@@ -21,13 +23,13 @@ int getc(FILE* stream);
 
 int main() {
   int c;
-  while ((c = getc(stdin)) != EOF) {
-    putc(c, stdout);
+  while ((c = std::getc(stdin)) != EOF) {
+    std::putc(c, stdout);
   }
 }
 ```
-* getc[color ff0000]
-* putc[link /reference/cstdio/putc.md]
+* std::getc[color ff0000]
+* std::putc[link /reference/cstdio/putc.md]
 
 ### 入力
 ```

reference/cstdio/getchar.md

@@ -4,7 +4,9 @@
 * function[meta id-type]
 
 ```cpp
-int getchar();
+namespace std {
+  int getchar();
+}
 ```
 
 ## 概要
@@ -22,13 +24,13 @@ int getchar();
 #include <cstdio>
 int main() {
   int c;
-  while ((c = getchar()) != EOF) {
-    putchar(c);
+  while ((c = std::getchar()) != EOF) {
+    std::putchar(c);
   }
 }
 ```
-* getchar[color ff0000]
-* putchar[link /reference/cstdio/putchar.md]
+* std::getchar[color ff0000]
+* std::putchar[link /reference/cstdio/putchar.md]
 * EOF[link /reference/cstdio/eof.md]
 
 ### 入力