tmp/tmpf9tnus9z/{from.md → to.md}
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| 1 |
+
### Utility <a id="debugging.utility">[[debugging.utility]]</a>
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| 2 |
+
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| 3 |
+
``` cpp
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| 4 |
+
void breakpoint() noexcept;
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| 5 |
+
```
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| 6 |
+
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| 7 |
+
The semantics of this function are *implementation-defined*.
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| 8 |
+
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| 9 |
+
[*Note 1*: It is intended that, when invoked with a debugger present,
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| 10 |
+
the execution of the program temporarily halts and execution is handed
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| 11 |
+
to the debugger until the program is either terminated by the debugger
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| 12 |
+
or the debugger resumes execution of the program as if the function was
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| 13 |
+
not invoked. In particular, there is no intent for a call to this
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| 14 |
+
function to accomodate resumption of the program in a different manner.
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| 15 |
+
If there is no debugger present, execution of the program can end
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| 16 |
+
abnormally. — *end note*]
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+
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| 18 |
+
``` cpp
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| 19 |
+
void breakpoint_if_debugging() noexcept;
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| 20 |
+
```
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| 21 |
+
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| 22 |
+
*Effects:* Equivalent to:
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| 23 |
+
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``` cpp
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| 25 |
+
if (is_debugger_present()) breakpoint();
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| 26 |
+
```
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+
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+
``` cpp
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| 29 |
+
bool is_debugger_present() noexcept;
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| 30 |
+
```
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| 31 |
+
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| 32 |
+
*Required behavior:* This function has no preconditions.
|
| 33 |
+
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| 34 |
+
*Default behavior:* *implementation-defined*.
|
| 35 |
+
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| 36 |
+
[*Note 2*: It is intended that, using an immediate (uncached) query to
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| 37 |
+
determine if the program is being traced by a debugger, an
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| 38 |
+
implementation returns `true` only when tracing the execution of the
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| 39 |
+
program with a debugger. On Windows or equivalent systems, this can be
|
| 40 |
+
achieved by calling the `::IsDebuggerPresent()` Win32 function. For
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| 41 |
+
systems compatible with ISO/IEC 23360:2021, this can be achieved by
|
| 42 |
+
checking for a tracing process, with a best-effort determination that
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| 43 |
+
such a tracing process is a debugger. — *end note*]
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| 44 |
+
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| 45 |
+
*Remarks:* This function is replaceable [[term.replaceable.function]].
|
| 46 |
+
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| 47 |
+
<!-- Link reference definitions -->
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| 48 |
+
[assertions]: #assertions
|
| 49 |
+
[assertions.assert]: #assertions.assert
|
| 50 |
+
[assertions.general]: #assertions.general
|
| 51 |
+
[bad.alloc]: support.md#bad.alloc
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| 52 |
+
[cassert.syn]: #cassert.syn
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| 53 |
+
[cerrno.syn]: #cerrno.syn
|
| 54 |
+
[cmp.concept]: support.md#cmp.concept
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| 55 |
+
[comparisons.three.way]: utilities.md#comparisons.three.way
|
| 56 |
+
[concepts.object]: concepts.md#concepts.object
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| 57 |
+
[container.alloc.reqmts]: containers.md#container.alloc.reqmts
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| 58 |
+
[container.rev.reqmts]: containers.md#container.rev.reqmts
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| 59 |
+
[conv]: expr.md#conv
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| 60 |
+
[cpp.predefined]: cpp.md#cpp.predefined
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| 61 |
+
[debugging]: #debugging
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| 62 |
+
[debugging.general]: #debugging.general
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| 63 |
+
[debugging.syn]: #debugging.syn
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| 64 |
+
[debugging.utility]: #debugging.utility
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| 65 |
+
[defns.const.subexpr]: intro.md#defns.const.subexpr
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| 66 |
+
[diagnostics]: #diagnostics
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| 67 |
+
[diagnostics.general]: #diagnostics.general
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| 68 |
+
[diagnostics.summary]: #diagnostics.summary
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| 69 |
+
[domain.error]: #domain.error
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| 70 |
+
[errno]: #errno
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| 71 |
+
[errno.general]: #errno.general
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| 72 |
+
[format.string.std]: text.md#format.string.std
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| 73 |
+
[intro.execution]: basic.md#intro.execution
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| 74 |
+
[invalid.argument]: #invalid.argument
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| 75 |
+
[iterator.concept.random.access]: iterators.md#iterator.concept.random.access
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| 76 |
+
[length.error]: #length.error
|
| 77 |
+
[logic.error]: #logic.error
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| 78 |
+
[out.of.range]: #out.of.range
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| 79 |
+
[overflow.error]: #overflow.error
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| 80 |
+
[random.access.iterators]: iterators.md#random.access.iterators
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| 81 |
+
[range.error]: #range.error
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| 82 |
+
[res.on.exception.handling]: library.md#res.on.exception.handling
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| 83 |
+
[runtime.error]: #runtime.error
|
| 84 |
+
[sequence.reqmts]: containers.md#sequence.reqmts
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| 85 |
+
[stacktrace]: #stacktrace
|
| 86 |
+
[stacktrace.basic]: #stacktrace.basic
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| 87 |
+
[stacktrace.basic.cmp]: #stacktrace.basic.cmp
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| 88 |
+
[stacktrace.basic.cons]: #stacktrace.basic.cons
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| 89 |
+
[stacktrace.basic.hash]: #stacktrace.basic.hash
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| 90 |
+
[stacktrace.basic.mod]: #stacktrace.basic.mod
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| 91 |
+
[stacktrace.basic.nonmem]: #stacktrace.basic.nonmem
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| 92 |
+
[stacktrace.basic.obs]: #stacktrace.basic.obs
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| 93 |
+
[stacktrace.basic.overview]: #stacktrace.basic.overview
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| 94 |
+
[stacktrace.entry]: #stacktrace.entry
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| 95 |
+
[stacktrace.entry.cmp]: #stacktrace.entry.cmp
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| 96 |
+
[stacktrace.entry.cons]: #stacktrace.entry.cons
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| 97 |
+
[stacktrace.entry.obs]: #stacktrace.entry.obs
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| 98 |
+
[stacktrace.entry.overview]: #stacktrace.entry.overview
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| 99 |
+
[stacktrace.entry.query]: #stacktrace.entry.query
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| 100 |
+
[stacktrace.format]: #stacktrace.format
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| 101 |
+
[stacktrace.general]: #stacktrace.general
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| 102 |
+
[stacktrace.syn]: #stacktrace.syn
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| 103 |
+
[std.exceptions]: #std.exceptions
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| 104 |
+
[std.exceptions.general]: #std.exceptions.general
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| 105 |
+
[stdexcept.syn]: #stdexcept.syn
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| 106 |
+
[syserr]: #syserr
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| 107 |
+
[syserr.compare]: #syserr.compare
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| 108 |
+
[syserr.errcat]: #syserr.errcat
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| 109 |
+
[syserr.errcat.derived]: #syserr.errcat.derived
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| 110 |
+
[syserr.errcat.nonvirtuals]: #syserr.errcat.nonvirtuals
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| 111 |
+
[syserr.errcat.objects]: #syserr.errcat.objects
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| 112 |
+
[syserr.errcat.overview]: #syserr.errcat.overview
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| 113 |
+
[syserr.errcat.virtuals]: #syserr.errcat.virtuals
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| 114 |
+
[syserr.errcode]: #syserr.errcode
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| 115 |
+
[syserr.errcode.constructors]: #syserr.errcode.constructors
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| 116 |
+
[syserr.errcode.modifiers]: #syserr.errcode.modifiers
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| 117 |
+
[syserr.errcode.nonmembers]: #syserr.errcode.nonmembers
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| 118 |
+
[syserr.errcode.observers]: #syserr.errcode.observers
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| 119 |
+
[syserr.errcode.overview]: #syserr.errcode.overview
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| 120 |
+
[syserr.errcondition]: #syserr.errcondition
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| 121 |
+
[syserr.errcondition.constructors]: #syserr.errcondition.constructors
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| 122 |
+
[syserr.errcondition.modifiers]: #syserr.errcondition.modifiers
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| 123 |
+
[syserr.errcondition.nonmembers]: #syserr.errcondition.nonmembers
|
| 124 |
+
[syserr.errcondition.observers]: #syserr.errcondition.observers
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| 125 |
+
[syserr.errcondition.overview]: #syserr.errcondition.overview
|
| 126 |
+
[syserr.general]: #syserr.general
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| 127 |
+
[syserr.hash]: #syserr.hash
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| 128 |
+
[syserr.syserr]: #syserr.syserr
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| 129 |
+
[syserr.syserr.members]: #syserr.syserr.members
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| 130 |
+
[syserr.syserr.overview]: #syserr.syserr.overview
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| 131 |
+
[system.error.syn]: #system.error.syn
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| 132 |
+
[term.replaceable.function]: dcl.md#term.replaceable.function
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| 133 |
+
[underflow.error]: #underflow.error
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| 134 |
+
[unord.hash]: utilities.md#unord.hash
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