質問編集履歴
2
コードの訂正
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@@ -24,6 +24,10 @@
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[インクルードしたライブラリ](https://linuxjm.osdn.jp/html/LDP_man-pages/man3/toupper.3.html)
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###発生している問題・エラーメッセージ
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ex2_4.c: In function 〓〓〓main〓〓〓:
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ex2_4.c:
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ex2_4.c:7:9: warning: format 〓〓〓%c〓〓〓 expects argument of type 〓〓〓char *〓〓〓, but argument 2 has type 〓〓〓int〓〓〓 [-Wformat=]
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scanf("%c", a);
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^
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ex2_4.c:6:12: warning: implicit declaration of function 〓〓〓toupper〓〓〓 [-Wimplicit-function-declaration]
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char b = toupper(a);
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^
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ex2_4.c:
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ex2_4.c:7:3: warning: 〓〓〓a〓〓〓 is used uninitialized in this function [-Wuninitialized]
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scanf("%c", a);
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^
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@@ -63,6 +63,10 @@
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```c
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#include<stdio.h>
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#include <ctype.h>
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int main(){
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1
情報追加
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capital is = A //返される文字
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```
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toupper関数は以下のwebサイトを参考にしました。
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[参考サイト](http://www.c-lang.net/%E5%A4%A7%E6%96%87%E5%AD%97%E3%83%BB%E5%B0%8F%E6%96%87%E5%AD%97%E3%81%AB%E5%A4%89%E6%8F%9B%E3%81%99%E3%82%8B-2/index.html)
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