回答編集履歴
1
コメントにしてたエラーケースの個数不足を修正し、実際のエラーを記載
test
CHANGED
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@@ -48,6 +48,42 @@
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{{2,3},{5,6}}, // 少ない
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//{{2,3,4},{5,6,7,8}}, 多い。これはgcc 8.2.0だとエラー
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{2,3,4,5,6,7}, // 古い書き方(普通)
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{2,3,4,5,6}, // 古い書き方(少ない)
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//{2,3,4,5,6,7,8} 古い書き方(多い)。これはgcc 8.2.0だとエラー
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};
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```
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```text
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user@lubuntu:~/cpp$ cat test.cpp
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struct Vertex
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{
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float position[3];
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float normal[3];
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};
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Vertex a[] = {
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{{1,2,3},{4,5,6}}, // 普通
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{{2,3},{5,6}}, // 少ない
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//{{2,3,4},{5,6,7}}, 多い。これはgcc 8.2.0だとエラー
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{2,3,4,5,6,7}, // 古い書き方(普通)
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@@ -58,9 +94,71 @@
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};
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int main() {return 0;}
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user@lubuntu:~/cpp$ g++ -g test.cpp -o test
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user@lubuntu:~/cpp$ gdb test
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GNU gdb (Ubuntu 8.2-0ubuntu1) 8.2
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Copyright (C) 2018 Free Software Foundation, Inc.
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License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
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This is free software: you are free to change and redistribute it.
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There is NO WARRANTY, to the extent permitted by law.
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Type "show copying" and "show warranty" for details.
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This GDB was configured as "x86_64-linux-gnu".
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Type "show configuration" for configuration details.
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For bug reporting instructions, please see:
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<http://www.gnu.org/software/gdb/bugs/>.
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Find the GDB manual and other documentation resources online at:
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<http://www.gnu.org/software/gdb/documentation/>.
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For help, type "help".
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Type "apropos word" to search for commands related to "word"...
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Reading symbols from test...done.
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(gdb) break main
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Breakpoint 1 at 0x1129: file test.cpp, line 16.
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(gdb) run
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Starting program: /home/user/cpp/test
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Breakpoint 1, main () at test.cpp:16
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16 int main() {return 0;}
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(gdb) display a
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1: a = {{position = {1, 2, 3}, normal = {4, 5, 6}}, {position = {2, 3, 0}, normal = {5, 6, 0}}, {
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position = {2, 3, 4}, normal = {5, 6, 7}}, {position = {2, 3, 4}, normal = {5, 6, 0}}}
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(gdb)
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```
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```
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多くてエラーになるケース(1)
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```text
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@@ -84,78 +182,78 @@
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{{2,3},{5,6}}, // 少ない
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{{2,3,4},{5,6,7,8}},// 多い。これはgcc 8.2.0だとエラー
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{2,3,4,5,6,7}, // 古い書き方(普通)
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{2,3,4,5,6,7}, // 古い書き方(普通)
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{2,3,4,5,6}, // 古い書き方(少ない)
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{2,3,4,5,6}, // 古い書き方(少ない)
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//{2,3,4,5,6,7,8} 古い書き方(多い)。これはgcc 8.2.0だとエラー
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//{2,3,4,5,6,7,8} // 古い書き方(多い)。これはgcc 8.2.0だとエラー
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};
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};
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int main() {return 0;}
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user@lubuntu:~/cpp$ g++ -g test.cpp -o test
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1:
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```
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test.cpp:14:1: error: too many initializers for ‘float [3]’
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};
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^
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user@lubuntu:~/cpp$
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```
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多くてエラーになるケース(2)
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```text
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user@lubuntu:~/cpp$ cat test.cpp
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struct Vertex
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{
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float position[3];
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float normal[3];
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};
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Vertex a[] = {
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{{1,2,3},{4,5,6}}, // 普通
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{{2,3},{5,6}}, // 少ない
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//{{2,3,4},{5,6,7,8}}, 多い。これはgcc 8.2.0だとエラー
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{2,3,4,5,6,7}, // 古い書き方(普通)
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{2,3,4,5,6}, // 古い書き方(少ない)
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{2,3,4,5,6,7,8} // 古い書き方(多い)。これはgcc 8.2.0だとエラー
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};
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int main() {return 0;}
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user@lubuntu:~/cpp$ g++ -g test.cpp -o test
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test.cpp:14:1: error: too many initializers for ‘Vertex’
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};
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^
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256
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user@lubuntu:~/cpp$
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```
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