1 /* 2 * Copyright (c) 2009-2021, Google LLC 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * * Neither the name of Google LLC nor the 13 * names of its contributors may be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL Google LLC BE LIABLE FOR ANY DIRECT, 20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifndef UPB_LEX_ATOI_H_ 29 #define UPB_LEX_ATOI_H_ 30 31 // Must be last. 32 #include "upb/port/def.inc" 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 // We use these hand-written routines instead of strto[u]l() because the "long 39 // long" variants aren't in c89. Also our version allows setting a ptr limit. 40 // Return the new position of the pointer after parsing the int, or NULL on 41 // integer overflow. 42 43 const char* upb_BufToUint64(const char* ptr, const char* end, uint64_t* val); 44 const char* upb_BufToInt64(const char* ptr, const char* end, int64_t* val, 45 bool* is_neg); 46 47 #ifdef __cplusplus 48 } /* extern "C" */ 49 #endif 50 51 #include "upb/port/undef.inc" 52 53 #endif /* UPB_LEX_ATOI_H_ */ 54