回答編集履歴
2
C++コード修正
answer
CHANGED
|
@@ -58,7 +58,7 @@
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|
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58
58
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59
59
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struct StaffList {
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60
60
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int num = 0;
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61
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-
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61
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+
Staff *staff = NULL;
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62
62
|
|
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63
63
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void add(const char *name) {
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64
64
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staff = (Staff *)reallocarray(staff, sizeof(Staff), num + 1);
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@@ -70,7 +70,7 @@
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70
70
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int main(void) {
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71
71
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printf("start\n");
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72
72
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73
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-
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73
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+
StaffList stafflist;
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74
74
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stafflist.add("akai");
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75
75
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stafflist.add("aoi");
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76
76
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stafflist.add("hogehoge");
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1
C++の例を追記
answer
CHANGED
|
@@ -43,4 +43,44 @@
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43
43
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stafflist->num = num;
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44
44
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stafflist->staff = staff;
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45
45
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}
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46
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+
```
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|
47
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+
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|
48
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+
ちょっと脱線しますが、C++だとこんな書き方ができます。
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|
49
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+
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50
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+
```c++
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|
51
|
+
#include <stdio.h>
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|
52
|
+
#include <stdlib.h>
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|
53
|
+
#include <string.h>
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54
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+
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55
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+
struct Staff {
|
|
56
|
+
char name[64];
|
|
57
|
+
};
|
|
58
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+
|
|
59
|
+
struct StaffList {
|
|
60
|
+
int num = 0;
|
|
61
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+
struct Staff *staff = NULL;
|
|
62
|
+
|
|
63
|
+
void add(const char *name) {
|
|
64
|
+
staff = (Staff *)reallocarray(staff, sizeof(Staff), num + 1);
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65
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+
strncpy(staff[num].name, name, sizeof(staff[num].name) - 1);
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66
|
+
num++;
|
|
67
|
+
}
|
|
68
|
+
};
|
|
69
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+
|
|
70
|
+
int main(void) {
|
|
71
|
+
printf("start\n");
|
|
72
|
+
|
|
73
|
+
struct StaffList stafflist;
|
|
74
|
+
stafflist.add("akai");
|
|
75
|
+
stafflist.add("aoi");
|
|
76
|
+
stafflist.add("hogehoge");
|
|
77
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+
|
|
78
|
+
printf("result\n");
|
|
79
|
+
for(int i = 0; i < stafflist.num; i++) {
|
|
80
|
+
printf("No %d, %s\n", i+1, stafflist.staff[i].name);
|
|
81
|
+
}
|
|
82
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+
|
|
83
|
+
printf("end\n");
|
|
84
|
+
return 0;
|
|
85
|
+
}
|
|
46
86
|
```
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