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ignore size of arrays on ptr-to-array conversions #2243

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Merged
merged 1 commit into from
Jun 20, 2018
Merged

ignore size of arrays on ptr-to-array conversions #2243

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8 changes: 8 additions & 0 deletions regression/ansi-c/Function_pointer1/conversion.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
int (*ptr2)[2];
int (*ptrX)[];

int main()
{
ptrX=ptr2;
ptr2=ptrX;
}
8 changes: 8 additions & 0 deletions regression/ansi-c/Function_pointer1/test_conversion.desc
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Original file line number Diff line number Diff line change
@@ -0,0 +1,8 @@
CORE
conversion.c
--verbosity 3
^EXIT=0$
^SIGNAL=0$
--
incompatible pointer types
^CONVERSION ERROR$
7 changes: 7 additions & 0 deletions src/ansi-c/c_typecast.cpp
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Expand Up @@ -543,6 +543,13 @@ void c_typecastt::implicit_typecast_followed(
// Also generous: between any to scalar types it's ok.
// We should probably check the size.
}
else if(src_sub.id()==ID_array &&
dest_sub.id()==ID_array &&
base_type_eq(src_sub.subtype(), dest_sub.subtype(), ns))
{
// we ignore the size of the top-level array
// in the case of pointers to arrays
}
else
warnings.push_back("incompatible pointer types");

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