Hi,

Trying to use the Metal C runtime library under z/OS 2.1.

I initialize the Metal C environment for amode 64 using the replacable heap option:

Every invocation of a library function generates this error: "Expecting pointer to struct or union".

From the listing I see this when I try to malloc 64 bytes:

  578   170 |    tempstg = (char *)malloc(64);                                                                 |    578   578   170 +    tempstg = (char *)((___MALLOC * ) ( (*(struct __cvt_s * __ptr32 * __ptr32)16) -> __cvtecvt ->\+    578===========> ..................................................................................a...............*=ERROR===========> a - CCN3122 Expecting pointer to struct or union.

I have the required define before the include of any Metal C headers:

#define __METAL_CSYSENV_VERSION 2

I then include both <metal.h> and <stdlib.h>.

That's all that the compiler and included headers should need to build the malloc call sequence correctly. Right?

Is this a bug, or am I doing something wrong?

Frank

The problem was in /usr/include/metal/metal.h.

On or around line 54 of this file, you will find the statement "#ifdef __EXTENDED__". This is incorrect, and should be changed to "#ifdef __PTR32". Failure to do so can cause generation of incorrect code when calling Metal C library functions.