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这样为什么会编译错误了??template<class T> int cmp( const void *a, const void *b ) { Point<T> *c = (Point<T> *)a ; Point<T> *d = (Point<T> *)b ; if( c->k - d->k > eps ) return 1 ; else if( c->k - d->k < -1 * eps ) return -1 ; else//斜率相等距离近的点在先 return c->x - d->x > 0 ? 1 : -1 ; } error C2664: 'qsort' : cannot convert parameter 4 from 'int (__cdecl *)(const void *,const void *)' to 'int (__cdecl *)(const void *,const void *)' Followed by: Post your reply here: |
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