forked from mirrors/gecko-dev
14e205a735
Depends on D137612 Differential Revision: https://phabricator.services.mozilla.com/D137650
37 lines
583 B
ReStructuredText
37 lines
583 B
ReStructuredText
PR_AtomicDecrement
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==================
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Atomically decrements a 32-bit value.
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Syntax
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------
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.. code:: eval
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#include <pratom.h>
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PRInt32 PR_AtomicDecrement(PRInt32 *val);
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Parameter
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~~~~~~~~~
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The function has the following parameter:
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``val``
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A pointer to the value to decrement.
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Returns
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~~~~~~~
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The function returns the decremented value (i.e., the result).
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Description
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-----------
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:ref:`PR_AtomicDecrement` first decrements the referenced variable by one.
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The value returned is the referenced variable's final value. The
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modification to memory is unconditional.
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