1 //===-- Unittests for iscntrl----------------------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "src/ctype/iscntrl.h" 10 #include "test/UnitTest/Test.h" 11 TEST(LlvmLibcIsCntrl,DefaultLocale)12TEST(LlvmLibcIsCntrl, DefaultLocale) { 13 // Loops through all characters, verifying that control characters 14 // return a non-zero integer, all others return zero. 15 for (int ch = -255; ch < 255; ++ch) { 16 if ((0 <= ch && ch <= 0x1f /*US*/) || ch == 0x7f /*DEL*/) 17 EXPECT_NE(LIBC_NAMESPACE::iscntrl(ch), 0); 18 else 19 EXPECT_EQ(LIBC_NAMESPACE::iscntrl(ch), 0); 20 } 21 } 22