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    1 // Copyright 2022 The Abseil Authors.
    2 //
    3 // Licensed under the Apache License, Version 2.0 (the "License");
    4 // you may not use this file except in compliance with the License.
    5 // You may obtain a copy of the License at
    6 //
    7 //      https://www.apache.org/licenses/LICENSE-2.0
    8 //
    9 // Unless required by applicable law or agreed to in writing, software
   10 // distributed under the License is distributed on an "AS IS" BASIS,
   11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   12 // See the License for the specific language governing permissions and
   13 // limitations under the License.
   14 //
   15 // -----------------------------------------------------------------------------
   16 // File: log/absl_check.h
   17 // -----------------------------------------------------------------------------
   18 //
   19 // This header declares a family of `ABSL_CHECK` macros as alternative spellings
   20 // for `CHECK` macros in `check.h`.
   21 //
   22 // Except for those whose names begin with `ABSL_DCHECK`, these macros are not
   23 // controlled by `NDEBUG` (cf. `assert`), so the check will be executed
   24 // regardless of compilation mode. `ABSL_CHECK` and friends are thus useful for
   25 // confirming invariants in situations where continuing to run would be worse
   26 // than terminating, e.g., due to risk of data corruption or security
   27 // compromise.  It is also more robust and portable to deliberately terminate
   28 // at a particular place with a useful message and backtrace than to assume some
   29 // ultimately unspecified and unreliable crashing behavior (such as a
   30 // "segmentation fault").
   31 //
   32 // For full documentation of each macro, see comments in `check.h`, which has an
   33 // identical set of macros without the ABSL_* prefix.
   34 
   35 #ifndef ABSL_LOG_ABSL_CHECK_H_
   36 #define ABSL_LOG_ABSL_CHECK_H_
   37 
   38 #include "absl/log/internal/check_impl.h"
   39 
   40 #define ABSL_CHECK(condition) \
   41   ABSL_LOG_INTERNAL_CHECK_IMPL((condition), #condition)
   42 #define ABSL_QCHECK(condition) \
   43   ABSL_LOG_INTERNAL_QCHECK_IMPL((condition), #condition)
   44 #define ABSL_PCHECK(condition) \
   45   ABSL_LOG_INTERNAL_PCHECK_IMPL((condition), #condition)
   46 #define ABSL_DCHECK(condition) \
   47   ABSL_LOG_INTERNAL_DCHECK_IMPL((condition), #condition)
   48 
   49 #define ABSL_CHECK_EQ(val1, val2) \
   50   ABSL_LOG_INTERNAL_CHECK_EQ_IMPL((val1), #val1, (val2), #val2)
   51 #define ABSL_CHECK_NE(val1, val2) \
   52   ABSL_LOG_INTERNAL_CHECK_NE_IMPL((val1), #val1, (val2), #val2)
   53 #define ABSL_CHECK_LE(val1, val2) \
   54   ABSL_LOG_INTERNAL_CHECK_LE_IMPL((val1), #val1, (val2), #val2)
   55 #define ABSL_CHECK_LT(val1, val2) \
   56   ABSL_LOG_INTERNAL_CHECK_LT_IMPL((val1), #val1, (val2), #val2)
   57 #define ABSL_CHECK_GE(val1, val2) \
   58   ABSL_LOG_INTERNAL_CHECK_GE_IMPL((val1), #val1, (val2), #val2)
   59 #define ABSL_CHECK_GT(val1, val2) \
   60   ABSL_LOG_INTERNAL_CHECK_GT_IMPL((val1), #val1, (val2), #val2)
   61 #define ABSL_QCHECK_EQ(val1, val2) \
   62   ABSL_LOG_INTERNAL_QCHECK_EQ_IMPL((val1), #val1, (val2), #val2)
   63 #define ABSL_QCHECK_NE(val1, val2) \
   64   ABSL_LOG_INTERNAL_QCHECK_NE_IMPL((val1), #val1, (val2), #val2)
   65 #define ABSL_QCHECK_LE(val1, val2) \
   66   ABSL_LOG_INTERNAL_QCHECK_LE_IMPL((val1), #val1, (val2), #val2)
   67 #define ABSL_QCHECK_LT(val1, val2) \
   68   ABSL_LOG_INTERNAL_QCHECK_LT_IMPL((val1), #val1, (val2), #val2)
   69 #define ABSL_QCHECK_GE(val1, val2) \
   70   ABSL_LOG_INTERNAL_QCHECK_GE_IMPL((val1), #val1, (val2), #val2)
   71 #define ABSL_QCHECK_GT(val1, val2) \
   72   ABSL_LOG_INTERNAL_QCHECK_GT_IMPL((val1), #val1, (val2), #val2)
   73 #define ABSL_DCHECK_EQ(val1, val2) \
   74   ABSL_LOG_INTERNAL_DCHECK_EQ_IMPL((val1), #val1, (val2), #val2)
   75 #define ABSL_DCHECK_NE(val1, val2) \
   76   ABSL_LOG_INTERNAL_DCHECK_NE_IMPL((val1), #val1, (val2), #val2)
   77 #define ABSL_DCHECK_LE(val1, val2) \
   78   ABSL_LOG_INTERNAL_DCHECK_LE_IMPL((val1), #val1, (val2), #val2)
   79 #define ABSL_DCHECK_LT(val1, val2) \
   80   ABSL_LOG_INTERNAL_DCHECK_LT_IMPL((val1), #val1, (val2), #val2)
   81 #define ABSL_DCHECK_GE(val1, val2) \
   82   ABSL_LOG_INTERNAL_DCHECK_GE_IMPL((val1), #val1, (val2), #val2)
   83 #define ABSL_DCHECK_GT(val1, val2) \
   84   ABSL_LOG_INTERNAL_DCHECK_GT_IMPL((val1), #val1, (val2), #val2)
   85 
   86 #define ABSL_CHECK_OK(status) ABSL_LOG_INTERNAL_CHECK_OK_IMPL((status), #status)
   87 #define ABSL_QCHECK_OK(status) \
   88   ABSL_LOG_INTERNAL_QCHECK_OK_IMPL((status), #status)
   89 #define ABSL_DCHECK_OK(status) \
   90   ABSL_LOG_INTERNAL_DCHECK_OK_IMPL((status), #status)
   91 
   92 #define ABSL_CHECK_STREQ(s1, s2) \
   93   ABSL_LOG_INTERNAL_CHECK_STREQ_IMPL((s1), #s1, (s2), #s2)
   94 #define ABSL_CHECK_STRNE(s1, s2) \
   95   ABSL_LOG_INTERNAL_CHECK_STRNE_IMPL((s1), #s1, (s2), #s2)
   96 #define ABSL_CHECK_STRCASEEQ(s1, s2) \
   97   ABSL_LOG_INTERNAL_CHECK_STRCASEEQ_IMPL((s1), #s1, (s2), #s2)
   98 #define ABSL_CHECK_STRCASENE(s1, s2) \
   99   ABSL_LOG_INTERNAL_CHECK_STRCASENE_IMPL((s1), #s1, (s2), #s2)
  100 #define ABSL_QCHECK_STREQ(s1, s2) \
  101   ABSL_LOG_INTERNAL_QCHECK_STREQ_IMPL((s1), #s1, (s2), #s2)
  102 #define ABSL_QCHECK_STRNE(s1, s2) \
  103   ABSL_LOG_INTERNAL_QCHECK_STRNE_IMPL((s1), #s1, (s2), #s2)
  104 #define ABSL_QCHECK_STRCASEEQ(s1, s2) \
  105   ABSL_LOG_INTERNAL_QCHECK_STRCASEEQ_IMPL((s1), #s1, (s2), #s2)
  106 #define ABSL_QCHECK_STRCASENE(s1, s2) \
  107   ABSL_LOG_INTERNAL_QCHECK_STRCASENE_IMPL((s1), #s1, (s2), #s2)
  108 #define ABSL_DCHECK_STREQ(s1, s2) \
  109   ABSL_LOG_INTERNAL_DCHECK_STREQ_IMPL((s1), #s1, (s2), #s2)
  110 #define ABSL_DCHECK_STRNE(s1, s2) \
  111   ABSL_LOG_INTERNAL_DCHECK_STRNE_IMPL((s1), #s1, (s2), #s2)
  112 #define ABSL_DCHECK_STRCASEEQ(s1, s2) \
  113   ABSL_LOG_INTERNAL_DCHECK_STRCASEEQ_IMPL((s1), #s1, (s2), #s2)
  114 #define ABSL_DCHECK_STRCASENE(s1, s2) \
  115   ABSL_LOG_INTERNAL_DCHECK_STRCASENE_IMPL((s1), #s1, (s2), #s2)
  116 
  117 #endif  // ABSL_LOG_ABSL_CHECK_H_