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9955f14aaf
WG14 has elected to remove support for K&R C functions in C2x. The feature was introduced into C89 already deprecated, so after this long of a deprecation period, the committee has made an empty parameter list mean the same thing in C as it means in C++: the function accepts no arguments exactly as if the function were written with (void) as the parameter list. This patch implements WG14 N2841 No function declarators without prototypes (http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2841.htm) and WG14 N2432 Remove support for function definitions with identifier lists (http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2432.pdf). It also adds The -fno-knr-functions command line option to opt into this behavior in other language modes. Differential Revision: https://reviews.llvm.org/D123955
12 lines
761 B
C
12 lines
761 B
C
// Ensure that we cannot disable strict prototypes, no matter how hard we try.
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// RUN: not %clang_cc1 -fno-no-knr-functions -x c++ %s 2>&1 | FileCheck --check-prefixes=NONO %s
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// RUN: not %clang_cc1 -fno-no-knr-functions -x c %s 2>&1 | FileCheck --check-prefixes=NONO %s
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// RUN: not %clang_cc1 -fno-no-knr-functions -std=c89 -x c %s 2>&1 | FileCheck --check-prefixes=NONO %s
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// RUN: not %clang_cc1 -fknr-functions -x c++ %s 2>&1 | FileCheck --check-prefixes=POS %s
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// RUN: not %clang_cc1 -fknr-functions -x c %s 2>&1 | FileCheck --check-prefixes=POS %s
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// RUN: not %clang_cc1 -fknr-functions -std=c89 -x c %s 2>&1 | FileCheck --check-prefixes=POS %s
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// NONO: error: unknown argument: '-fno-no-knr-functions'
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// POS: error: unknown argument: '-fknr-functions'
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