Re: [Mono-dev] Embedded API: mono_array_element_size issue

2013-10-08 Thread personalgame 

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[Mono-dev] Embedded API: mono_array_element_size issue

2013-10-02 Thread jonat...@mugginsoft.com 
The following raises so I presume that I have used it incorrectly:
   
MonoClass *arrayClass = mono_get_byte_class();
int32_t elementSize = mono_array_element_size(arrayClass);

* Assertion at class.c:8201, condition `ac-rank' not met

The entire method is:

- (MonoArray *)monoArray {

// get mono array info
MonoClass *arrayClass = mono_get_byte_class();
int32_t elementSize = mono_array_element_size(arrayClass);
//int32_t elementSize = sizeof(char);  // workaround

// assign the mono array
uintptr_t byteLength = [self length];
MonoArray *monoArray = mono_array_new(mono_domain_get(), arrayClass, 
byteLength);

// copy the NSData bytes  to the Mono array
char *buffer = mono_array_addr_with_size(monoArray, elementSize, 0);
[self getBytes:buffer length:[self length]];

return(monoArray);
}

Jonathan










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Re: [Mono-dev] Embedded API: mono_array_element_size issue

2013-10-02 Thread Robert Jordan 

Jonathan,

On 02.10.2013 12:21, jonat...@mugginsoft.com wrote:

The following raises so I presume that I have used it incorrectly:

 MonoClass *arrayClass = mono_get_byte_class();
 int32_t elementSize = mono_array_element_size(arrayClass);

* Assertion at class.c:8201, condition `ac-rank' not met



This is because arrayClass is not the MonoClass of a MonoArray.

You need something like that:

// assign the mono array
uintptr_t byteLength = [self length];
MonoArray *monoArray = mono_array_new(mono_domain_get(), 
mono_get_byte_class(), byteLength);
int32_t elementSize = 
mono_array_element_size(mono_object_get_class((MonoObject*)monoArray);


Robert


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