Studio:Can an array be cast to a pointer?: Difference between revisions
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No. You cannot cast an array to a pointer type. Because there are subtle differences between them, they are not always interchangeable in SCL like they are in C. | No. You cannot cast an array to a pointer type. Because there are subtle differences between them, they are not always interchangeable in SCL like they are in C. | ||
Instead of using the following:< | Instead of using the following: | ||
<source lang="c"> | |||
INT vr_get_foo(INT entry, INT index, file_table_t * out_buffer) | |||
typedef struct | |||
{ | |||
register ringer_types_t ringer_type; | |||
BYTE alias_filename[(MAX_RINGER_ALIAS_NAME_LEN+1) *2]; | |||
UINT16 pad; | |||
}ringer_file_table_t; | |||
#pragma scl_function(v_get_mmedia_ringer) | |||
#pragma scl_ptr(vr_get_mmedia_ringer, out_buffer, "OUT", PRIVATE) | |||
</source> | |||
Use this SCL instead:< | Use this SCL instead: | ||
<source lang="c"> | |||
#pragma scl_function(vr_get_mmedia_ringer) | |||
#pragma scl_ptr(vr_get_get_mmedia_ringer, out_buffer, "OUT", PRIVATE) | |||
#pragma scl_string(ringer_file_table_t, alias_filename, (MAX_RINGER_ALIAS_NAME_LEN+1) * 2) | |||
</source> | |||
[[Category:Studio:Pointers]] | |||
[[Category: | |||
Latest revision as of 00:41, 21 August 2009
No. You cannot cast an array to a pointer type. Because there are subtle differences between them, they are not always interchangeable in SCL like they are in C.
Instead of using the following:
INT vr_get_foo(INT entry, INT index, file_table_t * out_buffer)
typedef struct
{
register ringer_types_t ringer_type;
BYTE alias_filename[(MAX_RINGER_ALIAS_NAME_LEN+1) *2];
UINT16 pad;
}ringer_file_table_t;
#pragma scl_function(v_get_mmedia_ringer)
#pragma scl_ptr(vr_get_mmedia_ringer, out_buffer, "OUT", PRIVATE)
Use this SCL instead:
#pragma scl_function(vr_get_mmedia_ringer)
#pragma scl_ptr(vr_get_get_mmedia_ringer, out_buffer, "OUT", PRIVATE)
#pragma scl_string(ringer_file_table_t, alias_filename, (MAX_RINGER_ALIAS_NAME_LEN+1) * 2)