如何启用连接浮点库TURBOC? [英] How to enable linking floating point library in TurboC?
问题描述
我在C语言新手...只是想问问如何启用TURBOC链接浮点库?
I'm newbie in C language... Just want to ask how to enable linking floating point library in TurboC?
推荐答案
从的 comp.os.msdos.programmer常见问题解答:
浮点格式未链接的
Borland公司运行时错误(Borland的C或
C ++的Turbo C或C ++)。 Borland的
编译器自作聪明,而不是链接
在浮点(F-P)库
除非你需要它。唉,他们都得到
该决定是错误的。一个常见的情况是
在那里你不叫任何法布里 - 珀罗
功能,但你必须%F
或其他
法布里 - 珀罗格式 scanf()的
或的printf()
呼叫。治愈是调用一架F-P
功能,或至少力之一是
present中的链接。
"Floating point formats not linked" is a Borland run-time error (Borland C or C++, Turbo C or C++). Borland's compilers try to be smart and not link in the floating- point (f-p) library unless you need it. Alas, they all get the decision wrong. One common case is where you don't call any f-p functions, but you have
%f
or other f-p formats inscanf()
orprintf()
calls. The cure is to call an f-p function, or at least force one to be present in the link.
要做到这一点,定义此功能
某处源文件,但不
调用它:
To do that, define this function somewhere in a source file but don't call it:
static void forcefloat(float *p)
{
float f = *p;
forcefloat(&f);
}
它不必须是在该模块中
用主程序,只要它是
在将包含在一个模块
链接。
It doesn't have to be in the module with the main program, as long as it's in a module that will be included in the link.
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