1 //===-- Implementation of strtof ------------------------------------------===// 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/stdlib/strtof.h" 10 #include "src/__support/common.h" 11 #include "src/__support/macros/config.h" 12 #include "src/__support/str_to_float.h" 13 #include "src/errno/libc_errno.h" 14 15 namespace LIBC_NAMESPACE_DECL { 16 17 LLVM_LIBC_FUNCTION(float, strtof, 18 (const char *__restrict str, char **__restrict str_end)) { 19 auto result = internal::strtofloatingpoint<float>(str); 20 if (result.has_error()) 21 libc_errno = result.error; 22 23 if (str_end != nullptr) 24 *str_end = const_cast<char *>(str + result.parsed_len); 25 26 return result.value; 27 } 28 29 } // namespace LIBC_NAMESPACE_DECL 30