mgorny created this revision. mgorny added reviewers: krytarowski, vitalybuka. Herald added subscribers: Sanitizers, llvm-commits, kubamracek.
Subject: [PATCH 5/5] [sanitizer_common] Add tests for remaining *putc and *getc variants Add tests for the remaining character-oriented functions, that is: - fputc(), putc() and putchar() - getc_unlocked() - putc_unlocked() and putchar_unlocked() I'm omitting getchar_unlocked() as it relies on reading from stdin, and it is unlikely for it to be implemented otherwise as an alias to getc/fgetc. Repository: rCRT Compiler Runtime https://reviews.llvm.org/D56152 Files: test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc test/sanitizer_common/TestCases/Posix/getc_unlocked.cc test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc Index: test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc @@ -0,0 +1,12 @@ +// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s +// CHECK: bc + +#include <assert.h> +#include <stdio.h> + +int main(void) { + assert(putc_unlocked('b', stdout) != EOF); + assert(putchar_unlocked('c') != EOF); + + return 0; +} Index: test/sanitizer_common/TestCases/Posix/getc_unlocked.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/getc_unlocked.cc @@ -0,0 +1,20 @@ +// RUN: %clangxx -g %s -o %t && %run %t + +#include <assert.h> +#include <stdio.h> + +int main(int argc, char **argv) { + FILE *fp = fopen(argv[0], "r"); + assert(fp); + + // the file should be at least one character long, always + assert(getc_unlocked(fp) != EOF); + // POSIX guarantees being able to ungetc() at least one character + // NB: ungetc_unlocked is apparently not present + assert(ungetc('X', fp) != EOF); + // check whether ungetc() works with getc_unlocked() + assert(getc_unlocked(fp) == 'X'); + + assert(!fclose(fp)); + return 0; +} Index: test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc @@ -0,0 +1,13 @@ +// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s +// CHECK: abc + +#include <assert.h> +#include <stdio.h> + +int main(void) { + assert(fputc('a', stdout) != EOF); + assert(putc('b', stdout) != EOF); + assert(putchar('c') != EOF); + + return 0; +}
Index: test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/putc_putchar_unlocked.cc @@ -0,0 +1,12 @@ +// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s +// CHECK: bc + +#include <assert.h> +#include <stdio.h> + +int main(void) { + assert(putc_unlocked('b', stdout) != EOF); + assert(putchar_unlocked('c') != EOF); + + return 0; +} Index: test/sanitizer_common/TestCases/Posix/getc_unlocked.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/getc_unlocked.cc @@ -0,0 +1,20 @@ +// RUN: %clangxx -g %s -o %t && %run %t + +#include <assert.h> +#include <stdio.h> + +int main(int argc, char **argv) { + FILE *fp = fopen(argv[0], "r"); + assert(fp); + + // the file should be at least one character long, always + assert(getc_unlocked(fp) != EOF); + // POSIX guarantees being able to ungetc() at least one character + // NB: ungetc_unlocked is apparently not present + assert(ungetc('X', fp) != EOF); + // check whether ungetc() works with getc_unlocked() + assert(getc_unlocked(fp) == 'X'); + + assert(!fclose(fp)); + return 0; +} Index: test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc =================================================================== --- /dev/null +++ test/sanitizer_common/TestCases/Posix/fputc_putc_putchar.cc @@ -0,0 +1,13 @@ +// RUN: %clangxx -g %s -o %t && %run %t | FileCheck %s +// CHECK: abc + +#include <assert.h> +#include <stdio.h> + +int main(void) { + assert(fputc('a', stdout) != EOF); + assert(putc('b', stdout) != EOF); + assert(putchar('c') != EOF); + + return 0; +}
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