| // Copyright 2014 The Chromium Authors. All rights reserved.
|
| // Use of this source code is governed by a BSD-style license that can be
|
| // found in the LICENSE file.
|
| // This file contains macros and macro-like constructs (e.g., templates) that
|
| // are commonly used throughout Chromium source. (It may also contain things
|
| // that are closely related to things that are commonly used that belong in this
|
| // The COMPILE_ASSERT macro can be used to verify that a compile time
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| // expression is true. For example, you could use it to verify the
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| // size of a static array:
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| // COMPILE_ASSERT(ARRAYSIZE_UNSAFE(content_type_names) == CONTENT_NUM_TYPES,
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| // content_type_names_incorrect_size);
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| // or to make sure a struct is smaller than a certain size:
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| // COMPILE_ASSERT(sizeof(foo) < 128, foo_too_large);
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| // The second argument to the macro is the name of the variable. If
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| // the expression is false, most compilers will issue a warning/error
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| // containing the name of the variable.
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| #define COMPILE_ASSERT(expr, msg) static_assert(expr, #msg)
|
