Gnu C++ bugs in classes

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1 total messages Started by A.APPLEYARD Wed, 19 Aug 1992 09:57

#961

Author: A.APPLEYARD
Date: Wed, 19 Aug 1992 09:57

40 lines
1542 bytes

BUG REPORT: In Gnu C version 2.0, static members of classes are not allocated
storage space, and thus the linker complains that these symbols are missing if
I use them.
This bug was not present in the last version of Gnu C which I had (1.39?).
Herewith a C++ program, and its translation into assembler by Gnu C++.
Notice that there is no assembler line 'comm __12mousecatcher$mice,4'.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
class mousecatcher{public:
int cat,ferret,owl,trap;
static int mice;};
int i,j,k; mousecatcher Tom;
main(){i=Tom.cat; j=Tom.ferret; k=Tom.mice;}
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	.file	"t$$.cc"
gcc2_compiled.:
.text
	.align 2
.globl _main
_main:
	pushl %ebp
	movl %esp,%ebp
	call ___main
	movl _Tom,%edx
	movl %edx,_i
	movl _Tom+4,%edx
	movl %edx,_j
	movl __12mousecatcher$mice,%edx
	movl %edx,_k
	xorl %eax,%eax
	jmp L1
	.align 2,0x90
	jmp L1
	.align 2,0x90
L1:
	leave
	ret
.comm _i,4
.comm _j,4
.comm _k,4
.comm _Tom,16

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