Xref: utzoo comp.windows.ms.programmer:123 comp.lang.c++:10299
Path: utzoo!attcan!uunet!pilchuck!dataio!fnx!nazgul!bright
From: bright@nazgul.UUCP (Walter Bright)
Newsgroups: comp.windows.ms.programmer,comp.lang.c++
Subject: Re: Using Zortech C++ and Turbo C++ with MS Windows SDK
Message-ID: <148@nazgul.UUCP>
Date: 8 Nov 90 18:33:39 GMT
References: <1990Nov5.062543.10383@gpu.utcs.utoronto.ca>
Reply-To: bright@nazgul.UUCP (Walter Bright)
Organization: Zortech, Seattle
Lines: 21

In article <1990Nov5.062543.10383@gpu.utcs.utoronto.ca> avo@gpu.utcs.utoronto.ca (A. Bashir) writes:
<A - Zortech C++ 2.0:
<The simple test programs I tried, compiled and ran fine (include files and 
<libraries were the MS ones).  Once I introduced floating point numbers which
<required resolving some 'compiler helper functions' and floating point libraries
<with the Zortech 'zls.lib' library file, I started to get "C run time error 
<message".

What command are you sending to the linker? The SDK libraries must be specified
first, followed by the Zortech libraries.

The trouble probably stems from the fact that MSC functions that return a double

actually return a pointer to a double. ZTC functions that return a double
return it in the registers AX,BX,CX,DX. Thus, if you are using the function
sin(), you will have pulled in the MSC one from the SDK libraries but
ZTC expects the return value to be in AX,BX,CX,DX, which it isn't.

The reverse problem can happen too.

This is not an ideal situation, and we are working to fix it.