1 //===-- Write integer Converter for printf ----------------------*- C++ -*-===// 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 #ifndef LLVM_LIBC_SRC_STDIO_PRINTF_CORE_WRITE_INT_CONVERTER_H 10 #define LLVM_LIBC_SRC_STDIO_PRINTF_CORE_WRITE_INT_CONVERTER_H 11 12 #include "src/__support/macros/config.h" 13 #include "src/stdio/printf_core/core_structs.h" 14 #include "src/stdio/printf_core/writer.h" 15 16 #include <inttypes.h> 17 #include <stddef.h> 18 19 namespace LIBC_NAMESPACE_DECL { 20 namespace printf_core { 21 convert_write_int(Writer * writer,const FormatSection & to_conv)22LIBC_INLINE int convert_write_int(Writer *writer, 23 const FormatSection &to_conv) { 24 25 #ifndef LIBC_COPT_PRINTF_NO_NULLPTR_CHECKS 26 // This is an additional check added by LLVM-libc. 27 if (to_conv.conv_val_ptr == nullptr) 28 return NULLPTR_WRITE_ERROR; 29 #endif // LIBC_COPT_PRINTF_NO_NULLPTR_CHECKS 30 31 int written = writer->get_chars_written(); 32 33 switch (to_conv.length_modifier) { 34 case LengthModifier::none: 35 *reinterpret_cast<int *>(to_conv.conv_val_ptr) = written; 36 break; 37 case LengthModifier::l: 38 *reinterpret_cast<long *>(to_conv.conv_val_ptr) = written; 39 break; 40 case LengthModifier::ll: 41 case LengthModifier::L: 42 *reinterpret_cast<long long *>(to_conv.conv_val_ptr) = written; 43 break; 44 case LengthModifier::h: 45 *reinterpret_cast<short *>(to_conv.conv_val_ptr) = 46 static_cast<short>(written); 47 break; 48 case LengthModifier::hh: 49 *reinterpret_cast<signed char *>(to_conv.conv_val_ptr) = 50 static_cast<signed char>(written); 51 break; 52 case LengthModifier::z: 53 *reinterpret_cast<size_t *>(to_conv.conv_val_ptr) = written; 54 break; 55 case LengthModifier::t: 56 *reinterpret_cast<ptrdiff_t *>(to_conv.conv_val_ptr) = written; 57 break; 58 case LengthModifier::j: 59 case LengthModifier::w: 60 case LengthModifier::wf: 61 *reinterpret_cast<uintmax_t *>(to_conv.conv_val_ptr) = written; 62 break; 63 } 64 return WRITE_OK; 65 } 66 67 } // namespace printf_core 68 } // namespace LIBC_NAMESPACE_DECL 69 70 #endif // LLVM_LIBC_SRC_STDIO_PRINTF_CORE_WRITE_INT_CONVERTER_H 71