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TheRock/compiler/amd-llvm/compiler-rt/test/msan/getc_unlocked.c
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

33 lines
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C

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