C语言如何初始化一个float变量为无穷大？
How to initialize a float variable to be infinity in C language ？
我想用C语言初始化一个变量为正无穷大或负无穷大，怎么办？以下失败：
浮动 plus_inf = 0.0/0.0;
你可以试试
#include <math.h>
....
float x = INFINITY;
按照标准：
The macro
INFINITY
expands to a constant expression of type float representing positive or unsigned
infinity, if available; else to a positive constant of type float that overflows at translation time.
0.0/0.0 是 nan（不是数字），作为 INFINITY（c89 及更早版本）的替代方法，请尝试：
float plus_inf = 1.0/0.0;
宏无限在库下定义。
浮动变量 = INFINITY;
我想用C语言初始化一个变量为正无穷大或负无穷大，怎么办？以下失败：
浮动 plus_inf = 0.0/0.0;
你可以试试
#include <math.h>
....
float x = INFINITY;
按照标准：
The macro
INFINITY
expands to a constant expression of type float representing positive or unsigned infinity, if available; else to a positive constant of type float that overflows at translation time.
0.0/0.0 是 nan（不是数字），作为 INFINITY（c89 及更早版本）的替代方法，请尝试：
float plus_inf = 1.0/0.0;
宏无限在库下定义。
浮动变量 = INFINITY;