Alessio Quaglino
69a506e6ba
PiperOrigin-RevId: 455375707 Change-Id: Ia3dbb11886ab29c4ad3192e4f78b4b60b94baad0
36 lines
1.3 KiB
C
36 lines
1.3 KiB
C
// Copyright 2021 DeepMind Technologies Limited
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef MUJOCO_SRC_ENGINE_ENGINE_ARRAY_SAFETY_H_
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#define MUJOCO_SRC_ENGINE_ENGINE_ARRAY_SAFETY_H_
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#ifdef __cplusplus
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#error This file should not be used from C++ code.
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#endif
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#include <stdio.h>
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#include <string.h>
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// Evaluates to sizeof(arr) if arr is a char array, and emits a compiler error
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// otherwise. In particular, emits a compiler error if arr is a char*.
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#define mjSIZEOFARRAY(arr) _Generic(&(arr), char(*)[sizeof(arr)]: sizeof(arr))
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#define mjSNPRINTF(dest, ...) snprintf(dest, mjSIZEOFARRAY(dest), __VA_ARGS__)
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#define mjSTRNCAT(dest, src) strncat(dest, src, mjSIZEOFARRAY(dest) - strlen(dest) - 1)
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#define mjSTRNCPY(dest, src) mju_strncpy(dest, src, mjSIZEOFARRAY(dest))
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#endif // MUJOCO_SRC_ENGINE_ENGINE_ARRAY_SAFETY_H_
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