upb/lex/atoi.h

0001 // Protocol Buffers - Google's data interchange format
0002 // Copyright 2023 Google LLC.  All rights reserved.
0003 //
0004 // Use of this source code is governed by a BSD-style
0005 // license that can be found in the LICENSE file or at
0006 // https://developers.google.com/open-source/licenses/bsd
0007
0008 #ifndef UPB_LEX_ATOI_H_
0009 #define UPB_LEX_ATOI_H_
0010
0011 #include <stdint.h>
0012
0013 // Must be last.
0014 #include "upb/port/def.inc"
0015
0016 #ifdef __cplusplus
0017 extern "C" {
0018 #endif
0019
0020 // We use these hand-written routines instead of strto[u]l() because the "long
0021 // long" variants aren't in c89. Also our version allows setting a ptr limit.
0022 // Return the new position of the pointer after parsing the int, or NULL on
0023 // integer overflow.
0024
0025 const char* upb_BufToUint64(const char* ptr, const char* end, uint64_t* val);
0026 const char* upb_BufToInt64(const char* ptr, const char* end, int64_t* val,
0027                            bool* is_neg);
0028
0029 #ifdef __cplusplus
0030 } /* extern "C" */
0031 #endif
0032
0033 #include "upb/port/undef.inc"
0034
0035 #endif /* UPB_LEX_ATOI_H_ */