Rename Py_BUILD_ASSERT to Py_BUILD_ASSERT_EXPR
To make it clearer that Py_BUILD_ASSERT_EXPR(cond) cannot be used as assert(cond).
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@ -17,18 +17,17 @@
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#define foo_to_char(foo) \
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((char *)(foo) \
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+ Py_BUILD_ASSERT(offsetof(struct foo, string) == 0))
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+ Py_BUILD_ASSERT_EXPR(offsetof(struct foo, string) == 0))
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Written by Rusty Russell, public domain, http://ccodearchive.net/ */
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#define Py_BUILD_ASSERT(cond) \
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#define Py_BUILD_ASSERT_EXPR(cond) \
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(sizeof(char [1 - 2*!(cond)]) - 1)
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/* Get the number of elements in a visible array
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This does not work on pointers, or arrays declared as [], or function
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parameters. With correct compiler support, such usage will cause a build
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error (see Py_BUILD_ASSERT).
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error (see Py_BUILD_ASSERT_EXPR).
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Written by Rusty Russell, public domain, http://ccodearchive.net/ */
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#if defined(__GNUC__)
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@ -36,8 +35,8 @@
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&a[0] degrades to a pointer: a different type from an array */
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#define Py_ARRAY_LENGTH(array) \
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(sizeof(array) / sizeof((array)[0]) \
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+ Py_BUILD_ASSERT(!__builtin_types_compatible_p(typeof(array), \
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typeof(&(array)[0]))))
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+ Py_BUILD_ASSERT_EXPR(!__builtin_types_compatible_p(typeof(array), \
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typeof(&(array)[0]))))
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#else
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#define Py_ARRAY_LENGTH(array) \
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(sizeof(array) / sizeof((array)[0]))
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