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//===-- Implementation of toupper------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/ctype/toupper.h"
#include "src/__support/ctype_utils.h"
#include "src/__support/common.h"
namespace LIBC_NAMESPACE {
// TODO: Currently restricted to default locale.
// These should be extended using locale information.
LLVM_LIBC_FUNCTION(int, toupper, (int c)) {
if (internal::islower(c))
return c - ('a' - 'A');
return c;
}
} // namespace LIBC_NAMESPACE