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Accept extern initialized file-scope variables

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'extern int i = 42;' at file scope (but not in function scope!) is
allowed and is a proper definition, even though questionable style;
some compilers warn about this.
This commit is contained in:
Michael Matz 2017-05-07 08:10:06 +02:00
parent 5732a1882e
commit 94ac9f2b49
2 changed files with 4 additions and 1 deletions
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3
tccgen.c
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@ -6955,7 +6955,8 @@ found:
has_init = (tok == '=');
if (has_init && (type.t & VT_VLA))
tcc_error("variable length array cannot be initialized");
if ((type.t & VT_EXTERN) || ((type.t & VT_BTYPE) == VT_FUNC) ||
if (((type.t & VT_EXTERN) && (!has_init || l != VT_CONST)) ||
((type.t & VT_BTYPE) == VT_FUNC) ||
((type.t & VT_ARRAY) && (type.t & VT_STATIC) &&
!has_init && l == VT_CONST && type.ref->c < 0)) {
/* external variable or function */

2
tests/tcctest.c
View File

@ -1752,6 +1752,8 @@ arrtype2 sinit22 = {5,6,7};
int sinit23[2] = { "astring" ? sizeof("astring") : -1,
&sinit23 ? 42 : -1 };
extern int external_inited = 42;
void init_test(void)
{
int linit1 = 2;