Reading in long double in the C programming language

Question

我怎么读C中的长双？

Answer 1

long double x; scanf("%Lf", &x);

Answer 2

Be aware that "long double" is a synonym for "double" on Visual Studio.

http://blogs.msdn.com/ericflee/archive/2004/06/10/152852.aspx

Answer 3

Either hrnt's answer ( scanf("%Lf", &x) ) or

long double x;
if(read(fd,&x,sizeof(x))!=sizeof(x)) printf("Oops\n");

the question is very vague.

Answer 4

您可以使用格式说明符％ld来读取长双变量。