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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libgo/] [runtime/] [go-eface-compare.c] - Rev 756
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/* go-eface-compare.c -- compare two empty values. Copyright 2010 The Go Authors. All rights reserved. Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. */ #include "runtime.h" #include "interface.h" /* Compare two interface values. Return 0 for equal, not zero for not equal (return value is like strcmp). */ int __go_empty_interface_compare (struct __go_empty_interface left, struct __go_empty_interface right) { const struct __go_type_descriptor *left_descriptor; left_descriptor = left.__type_descriptor; if (((uintptr_t) left_descriptor & reflectFlags) != 0 || ((uintptr_t) right.__type_descriptor & reflectFlags) != 0) runtime_panicstring ("invalid interface value"); if (left_descriptor == NULL && right.__type_descriptor == NULL) return 0; if (left_descriptor == NULL || right.__type_descriptor == NULL) return 1; if (!__go_type_descriptors_equal (left_descriptor, right.__type_descriptor)) return 1; if (__go_is_pointer_type (left_descriptor)) return left.__object == right.__object ? 0 : 1; if (!left_descriptor->__equalfn (left.__object, right.__object, left_descriptor->__size)) return 1; return 0; }
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