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50bded71b2
Adds a new warning to memcheck when realloc is used with a size of 0. For a long time this has been "implementation defined" and so non-portable. With C23 it will become UB. Also adds a switch to turn off the error generation and a second switch to select between the most common "implementation" behaviours. The defaults for this second switch are baked in at build time.
8 lines
208 B
Plaintext
8 lines
208 B
Plaintext
realloc() with size 0
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at 0x........: realloc (vg_replace_malloc.c:...)
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...
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Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd
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at 0x........: malloc (vg_replace_malloc.c:...)
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...
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