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33 lines
898 B
33 lines
898 B
// RUN: %clangxx_msan -DGETC -O0 -g -xc++ %s -o %t && %run %t
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// RUN: %clangxx_msan -DGETC -O3 -g -xc++ %s -o %t && %run %t
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// RUN: %clang_msan -DGETC -O0 -g %s -o %t && %run %t
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// RUN: %clang_msan -DGETC -O3 -g %s -o %t && %run %t
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// RUN: %clangxx_msan -DGETCHAR -O0 -g -xc++ %s -o %t && %run %t
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// RUN: %clangxx_msan -DGETCHAR -O3 -g -xc++ %s -o %t && %run %t
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// RUN: %clang_msan -DGETCHAR -O0 -g %s -o %t && %run %t
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// RUN: %clang_msan -DGETCHAR -O3 -g %s -o %t && %run %t
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#include <assert.h>
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#include <stdio.h>
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#include <unistd.h>
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int main() {
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FILE *stream = fopen("/dev/zero", "r");
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flockfile (stream);
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int c;
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#if defined(GETCHAR)
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int res = dup2(fileno(stream), 0);
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assert(res == 0);
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c = getchar_unlocked();
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#elif defined(GETC)
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c = getc_unlocked (stream);
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#endif
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funlockfile (stream);
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if (c == EOF)
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return 1;
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printf("%c\n", (char)c);
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fclose(stream);
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return 0;
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}
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