Difference between revisions of "CMem"
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The unit should be the first unit in the uses clause, otherwise memory can already be allocated by initialization routines in units that are initialized before the C memory manager is installed. | The unit should be the first unit in the uses clause, otherwise memory can already be allocated by initialization routines in units that are initialized before the C memory manager is installed. | ||
| − | In cases where several units like cthreads, cmem and cwstrings are recommended to be placed first, due to how the units work a sensible order is | + | In cases where several units like '''cthreads''', '''cmem''' and '''cwstrings''' are recommended to be placed first, due to how the units work a sensible order is |
| − | There is a small example program '''testcmem''', which demonstrates the use of the cmem unit. | + | * cmem |
| + | * cthreads | ||
| + | * cwstrings | ||
| + | |||
| + | There is a small example program [https://gitlab.com/freepascal.org/fpc/source/-/blob/main/packages/libgc/examples/testcmem.pp '''testcmem'''], which demonstrates the use of the cmem unit. | ||
CMem should not be used if [[heaptrc]] is used. | CMem should not be used if [[heaptrc]] is used. | ||
Latest revision as of 20:40, 10 January 2022
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If you include the cmem unit in your uses clause of your program, it will replace the native Free Pascal memory manager with the C library memory manager. All memory management is then done by the C memory manager.
The unit should be the first unit in the uses clause, otherwise memory can already be allocated by initialization routines in units that are initialized before the C memory manager is installed.
In cases where several units like cthreads, cmem and cwstrings are recommended to be placed first, due to how the units work a sensible order is
- cmem
- cthreads
- cwstrings
There is a small example program testcmem, which demonstrates the use of the cmem unit.
CMem should not be used if heaptrc is used.
