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2c55b92 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | // Copyright 2021 DeepMind Technologies Limited
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef MUJOCO_SRC_ENGINE_ENGINE_ARRAY_SAFETY_H_
#define MUJOCO_SRC_ENGINE_ENGINE_ARRAY_SAFETY_H_
#ifdef __cplusplus
#error This file should not be used from C++ code.
#endif
#include <stdio.h>
#include <string.h>
// Evaluates to sizeof(arr) if arr is a char array, and emits a compiler error
// otherwise. In particular, emits a compiler error if arr is a char*.
#define mjSIZEOFARRAY(arr) _Generic(&(arr), char(*)[sizeof(arr)]: sizeof(arr))
#define mjSNPRINTF(dest, ...) snprintf(dest, mjSIZEOFARRAY(dest), __VA_ARGS__)
#define mjSTRNCAT(dest, src) strncat(dest, src, mjSIZEOFARRAY(dest) - strlen(dest) - 1)
#define mjSTRNCPY(dest, src) mju_strncpy(dest, src, mjSIZEOFARRAY(dest))
#endif // MUJOCO_SRC_ENGINE_ENGINE_ARRAY_SAFETY_H_
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