漂浮为无限 [英] Float as Infinity
问题描述
嘿所有
我有浮动问题
我应该写一个程序，你可以从
$获得一些数字b $ b命令行并尝试查找这些
数字的最大值和最小值。
我需要初始化2个浮点数（一个带负无穷大，一个带有
加无穷大），或者其他人有什么想法吗？
到目前为止我已经制作了这段代码：
#include < stdio.h>
int main（void）{
int sat = 0;
float max = 0.0， x;
float min = plus-infinity;
printf（写一些数字：\ n）;
while（scanf（"％f"，& x）== 1）{
if（max< x）{
max = x ;
}
if（sat == 0）{
min = x;
sat = 1;
}否则{
if（min> x）{
min = x;
}
}
}
printf（"％f is max \ n"，max）;
printf（"％f is min \ nn，min）;
返回0;
}
Hey all
I have a problem with float
I should write a program, where you are getting some numbers from the
command-line and try to find the maximum and minimum-values of these
numbers.
I need to initialize 2 floats (one with minus infinity and one with
plus infinity), or does anybody else have an idea?
I have made this code until now:
#include <stdio.h>
int main(void) {
int sat = 0;
float max = 0.0, x;
float min = plus-infinity;
printf ("Write some numbers:\n");
while( scanf("%f", &x) == 1) {
if (max<x) {
max=x;
}
if (sat == 0) {
min = x;
sat = 1;
} else {
if (min>x) {
min = x;
}
}
}
printf ("%f is max\n", max);
printf ("%f is min\n", min);
return 0;
}
推荐答案
math.h中定义的宏INFINITY应该做（负无穷大是
只需-INFINITY）。它是在较新的ISO C99标准中引入的，因此
某些编译器可能没有它们或使用其他名称。
The macro INFINITY defined in math.h should do (negative infinity is
simply -INFINITY). It is introduced in the newer ISO C99 standard, so
certain compilers might not have them or use some other name.
9月24日13:15，r6144< rainy6 ... @ gmail.comwrote：
On 24 Sep., 13:15, r6144 <rainy6...@gmail.comwrote:
math.h中定义的宏INFINITY应该做（负无穷大）是
只需-INFINITY）。它是在较新的ISO C99标准中引入的，因此
某些编译器可能没有它们或使用其他名称。
The macro INFINITY defined in math.h should do (negative infinity is
simply -INFINITY). It is introduced in the newer ISO C99 standard, so
certain compilers might not have them or use some other name.
还有另一种方式，我可以做到吗？
Is there another way, I can do it then?
The87Boy写道：
The87Boy wrote:
9月24日，13：15，r6144< rainy6 ... @ gmail.comwrote：
On 24 Sep., 13:15, r6144 <rainy6...@gmail.comwrote:
> math.h中定义的宏INFINITY应该这样做（负无穷大就是-INFINITY）。它是在较新的ISO C99标准中引入的，因此某些编译器可能没有它们或使用其他名称。
>The macro INFINITY defined in math.h should do (negative infinity is
simply -INFINITY). It is introduced in the newer ISO C99 standard, so
certain compilers might not have them or use some other name.
还有另一种方式，我可以做到吗？
Is there another way, I can do it then?
做什么？如果你想要C90兼容性，
#include< float.h>
初始化为FLT_MIN或FLT_MAX
因为没有支持的方式处理无穷大。
Do what? If you want C90 compatibility,
#include <float.h>
initialize to FLT_MIN or FLT_MAX
as there is no supported way of handling infinities.
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