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Issue #9089: Remove references to intobject.c and intobject.h from comments.
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4 changed files with 19 additions and 4 deletions
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@ -21,7 +21,22 @@
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extern int finite(double);
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#endif
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/* Special free list -- see comments for same code in intobject.c. */
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/* Special free list
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Since some Python programs can spend much of their time allocating
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and deallocating floats, these operations should be very fast.
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Therefore we use a dedicated allocation scheme with a much lower
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overhead (in space and time) than straight malloc(): a simple
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dedicated free list, filled when necessary with memory from malloc().
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block_list is a singly-linked list of all PyFloatBlocks ever allocated,
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linked via their next members. PyFloatBlocks are never returned to the
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system before shutdown (PyFloat_Fini).
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free_list is a singly-linked list of available PyFloatObjects, linked
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via abuse of their ob_type members.
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*/
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#define BLOCK_SIZE 1000 /* 1K less typical malloc overhead */
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#define BHEAD_SIZE 8 /* Enough for a 64-bit pointer */
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#define N_FLOATOBJECTS ((BLOCK_SIZE - BHEAD_SIZE) / sizeof(PyFloatObject))
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