2cb2cd242c
C89 allowed a type specifier to be elided with the resulting type being int, aka implicit int behavior. This feature was subsequently removed in C99 without a deprecation period, so implementations continued to support the feature. Now, as with implicit function declarations, is a good time to reevaluate the need for this support. This patch allows -Wimplicit-int to issue warnings in C89 mode (off by default), defaults the warning to an error in C99 through C17, and disables support for the feature entirely in C2x. It also removes a warning about missing declaration specifiers that really was just an implicit int warning in disguise and other minor related cleanups.
29 lines
1.4 KiB
Objective-C
29 lines
1.4 KiB
Objective-C
// REQUIRES: x86-registered-target
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// RUN: rm -rf %t
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// RUN: %clang_cc1 -triple x86_64-apple-macosx10 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t \
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// RUN: -fmodules-ignore-macro=PREFIX -DPREFIX -Wno-error=implicit-int -I %S/Inputs/va_list \
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// RUN: -x objective-c-header %s -o %t.pch -emit-pch
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// Include the pch, as a basic correctness check.
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// RUN: %clang_cc1 -triple x86_64-apple-macosx10 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t \
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// RUN: -fmodules-ignore-macro=PREFIX -I %S/Inputs/va_list -Wno-error=implicit-int -include-pch %t.pch \
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// RUN: -x objective-c %s -fsyntax-only
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// Repeat the previous emit-pch, but not we will have a global module index.
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// For some reason, this results in an identifier for __va_list_tag being
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// emitted into the pch.
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// RUN: %clang_cc1 -triple x86_64-apple-macosx10 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t \
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// RUN: -fmodules-ignore-macro=PREFIX -DPREFIX -I %S/Inputs/va_list -Wno-error=implicit-int \
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// RUN: -x objective-c-header %s -o %t.pch -emit-pch
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// Include the pch, which now has __va_list_tag in it, which needs to be merged.
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// RUN: %clang_cc1 -triple x86_64-apple-macosx10 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t \
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// RUN: -fmodules-ignore-macro=PREFIX -Wno-error=implicit-int -I %S/Inputs/va_list -include-pch %t.pch \
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// RUN: -x objective-c %s -fsyntax-only
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// rdar://18039719
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#ifdef PREFIX
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@import va_list_b;
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#endif
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