1 //===-- Unittests for isdigit----------------------------------------------===//
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/isdigit.h"
10 
11 #include "utils/UnitTest/Test.h"
12 
TEST(LlvmLibcIsDigit,DefaultLocale)13 TEST(LlvmLibcIsDigit, DefaultLocale) {
14   // Loops through all characters, verifying that numbers return a
15   // non-zero integer and everything else returns zero.
16   for (int ch = 0; ch < 255; ++ch) {
17     if ('0' <= ch && ch <= '9')
18       EXPECT_NE(__llvm_libc::isdigit(ch), 0);
19     else
20       EXPECT_EQ(__llvm_libc::isdigit(ch), 0);
21   }
22 }
23