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author | Ben Cheng <bccheng@google.com> | 2013-03-28 11:14:20 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2013-03-28 12:40:33 -0700 |
commit | af0c51ac87ab2a87caa03fa108f0d164987a2764 (patch) | |
tree | 4b8b470f7c5b69642fdab8d0aa1fbc148d02196b /gcc-4.8/libgo/runtime/go-eface-val-compare.c | |
parent | d87cae247d39ebf4f5a6bf25c932a14d2fdb9384 (diff) | |
download | toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.gz toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.tar.bz2 toolchain_gcc-af0c51ac87ab2a87caa03fa108f0d164987a2764.zip |
[GCC 4.8] Initial check-in of GCC 4.8.0
Change-Id: I0719d8a6d0f69b367a6ab6f10eb75622dbf12771
Diffstat (limited to 'gcc-4.8/libgo/runtime/go-eface-val-compare.c')
-rw-r--r-- | gcc-4.8/libgo/runtime/go-eface-val-compare.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.8/libgo/runtime/go-eface-val-compare.c b/gcc-4.8/libgo/runtime/go-eface-val-compare.c new file mode 100644 index 000000000..454ea3eba --- /dev/null +++ b/gcc-4.8/libgo/runtime/go-eface-val-compare.c @@ -0,0 +1,35 @@ +/* go-eface-val-compare.c -- compare an empty interface with a value. + + 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 "go-type.h" +#include "interface.h" + +/* Compare an empty interface with a value. Return 0 for equal, not + zero for not equal (return value is like strcmp). */ + +intgo +__go_empty_interface_value_compare ( + struct __go_empty_interface left, + const struct __go_type_descriptor *right_descriptor, + const void *val) +{ + const struct __go_type_descriptor *left_descriptor; + + left_descriptor = left.__type_descriptor; + if (((uintptr_t) left_descriptor & reflectFlags) != 0) + runtime_panicstring ("invalid interface value"); + if (left_descriptor == NULL) + return 1; + if (!__go_type_descriptors_equal (left_descriptor, right_descriptor)) + return 1; + if (__go_is_pointer_type (left_descriptor)) + return left.__object == val ? 0 : 1; + if (!left_descriptor->__equalfn (left.__object, val, + left_descriptor->__size)) + return 1; + return 0; +} |