sizeof与演员阵容具有相同的优先级,并且他们都从右边绑定到 左边。以下不能用gcc为我编译: int main(无效) { sizeof(double) 5; 返回0; } 它是否与globbing有关? - Frederick Gotham
sizeof has the same precedence as a cast, and they both bind from right to left. The following won''t compile for me with gcc: int main(void) { sizeof(double)5; return 0; } Has it got something to do with "globbing"? -- Frederick Gotham
推荐答案10月6日晚9点39分,Frederick Gotham< fgotha ... @ SPAM写道: On Oct 6, 9:39 pm, Frederick Gotham <fgotha...@SPAMwrote: sizeof具有与演员相同的优先级,并且它们都从右边绑定到 左边。以下不能用gcc为我编译: int main(无效) { sizeof(double) 5; 返回0; } 它是否与globbing有关? - Frederick Gotham sizeof has the same precedence as a cast, and they both bind from right to left. The following won''t compile for me with gcc: int main(void) { sizeof(double)5; return 0; } Has it got something to do with "globbing"? -- Frederick Gotham
" sizeof((double )5)"效果很好。
"sizeof ((double)5)" works well.
Cong Wang写道: Cong Wang wrote: 10月6日晚9点39分,Frederick Gotham< fgotha ... @ SPAM写道: On Oct 6, 9:39 pm, Frederick Gotham <fgotha...@SPAMwrote: sizeof与演员阵容具有相同的优先级,他们俩都是从右边绑定到 离开。以下不能用gcc为我编译: int main(无效) { sizeof(double) 5; 返回0; } 它是否与globbing有关? - Frederick Gotham sizeof has the same precedence as a cast, and they both bind from right to left. The following won''t compile for me with gcc: int main(void) { sizeof(double)5; return 0; } Has it got something to do with "globbing"? -- Frederick Gotham
" sizeof((double )5)"效果很好。
"sizeof ((double)5)" works well.
Cong Wang发布: Cong Wang posted: " sizeof((double)5)"效果很好。 "sizeof ((double)5)" works well.
是的,我意识到了。我的问题涉及运算符优先级和 关联性 - 具体来说,原因: sizeof(double)5 被gcc解释为: (sizeof(double))5 而不是: sizeof((double)5) - Frederick Gotham
Yes, I realise that. My question pertains to operator precedence and associativity -- specifically, why: sizeof(double)5 is interpretted by gcc as: (sizeof(double))5 rather than: sizeof((double)5) -- Frederick Gotham
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