回答編集履歴
3
tcharの扱いについてちょっとミスがあったため修正
answer
CHANGED
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@@ -2,7 +2,7 @@
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2
2
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3
3
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```c
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4
4
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TCHAR buf[80];
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5
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-
_tcsftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", bar);
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5
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+
_tcsftime(buf, sizeof(buf)/sizeof(TCHAR), "%Y-%m-%d %H:%M:%S", bar);
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6
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```
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7
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---
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@@ -23,9 +23,9 @@
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time_t foo = 946728000 + x;
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tm *bar = gmtime(&foo);
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TCHAR buf[80];
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-
_tcsftime(buf, sizeof(buf), _T("%Y-%m-%d %H:%M:%S"), bar);
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+
_tcsftime(buf, sizeof(buf)/sizeof(TCHAR), _T("%Y-%m-%d %H:%M:%S"), bar);
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-
draw_text(buf, sizeof(buf));
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+
draw_text(buf, sizeof(buf)/sizeof(TCHAR));
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}
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int main(){
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2
追記
answer
CHANGED
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@@ -3,4 +3,34 @@
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3
3
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```c
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4
4
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TCHAR buf[80];
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5
5
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_tcsftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", bar);
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6
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-
```
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6
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```
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7
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+
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8
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---
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9
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+
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10
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```C++
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11
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#include <windows.h>
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12
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#include <tchar.h>
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13
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#include <ctime>
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14
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15
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void draw_text(TCHAR str[], size_t len){
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HWND desktop = GetDesktopWindow();
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HDC hdc = GetWindowDC(desktop);
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TextOut(hdc, 0,0, str, _tcsnlen(str, len));
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UpdateWindow(desktop);
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}
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21
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void draw_asdf(time_t x){
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time_t foo = 946728000 + x;
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tm *bar = gmtime(&foo);
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TCHAR buf[80];
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26
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_tcsftime(buf, sizeof(buf), _T("%Y-%m-%d %H:%M:%S"), bar);
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draw_text(buf, sizeof(buf));
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}
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int main(){
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32
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draw_asdf(100);
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33
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}
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34
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```
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35
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+
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36
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+
`gcc version 8.2.0 (Rev3, Built by MSYS2 project)`にて動作確認しました。
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1
修正
answer
CHANGED
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@@ -1,6 +1,6 @@
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1
1
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`_tcsftime`を用いてください。
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2
2
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3
3
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```c
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4
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-
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4
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+
TCHAR buf[80];
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5
5
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_tcsftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", bar);
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6
6
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```
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