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Alloc
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[edit] Definition
VOID POINTER alloc ( <INT size> )
Allocates a block of memory of a certain size.
[edit] Parameters
INT size | - The size of the to be allocated memory in bytes. |
[edit] Returns
VOID POINTER : Pointer to the first element of the allocated memory block.
[edit] Errors
Insufficient memory | - There is insufficient memory available. This error doesn't occur often. |
[edit] Example
Program example; Private byte pointer pbyte; word pointer pword; int pointer pint; int elements = 10; int i; Begin // Allocate memory pbyte = alloc(elements); pword = alloc(elements*sizeof(word)); pint = alloc(elements*sizeof(int)); // Reset memory to 0's memset (pbyte,0,elements); memsetw(pword,0,elements); // same as memset(pword,0,elements*sizeof(word)); // because value-parameter is 0. memset (pint ,0,elements*sizeof(int)); // There isn't a "memseti()", so we need to // set the individual bytes to 0. To change // ints to nonzero values, memset() can't be // used easily // Write numbers to bytes and ints for(i=0; i<elements; i++) pbyte[i] = 133; // pbyte[i] is the same as *(pbyte+i) *(pint+i) = 4555; // pint[i] is the same as *(pint+i) end // Write numbers to words memsetw(pword,345,elements); // Show numbers for(i=0; i<elements; i++) say("byte["+i+"] = " + *(pbyte+i)); say("word["+i+"] = " + pword[i]); say("int ["+i+"] = " + pint[i]); end Repeat frame; Until(key(_esc)) // Free the used memory free(pbyte); free(pword); free(pint); End
Used in example: alloc(), memset(), memsetw(), sizeof(), say(), free(), pointer
Memory Functions | |
• Alloc() • Free() • Memcmp() • Memcopy() • Memory_free() • Memory_total() • Memset() • Memsetw() • Realloc() • |