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Memsetw
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Used in example: [[alloc]](), [[memset]](), [[say]](), [[pointer]] | Used in example: [[alloc]](), [[memset]](), [[say]](), [[pointer]] | ||
- | Also usable in conjunction with [[map_buffer]](). (''Example needed.'') | + | Also usable in conjunction with [[map_buffer]]() with 16bit maps. (''Example needed.'') |
Revision as of 22:40, 27 April 2007
Contents |
Definition
INT memsetw ( <WORD POINTER data> , <WORD value> , <INT words> )
Sets all words in a certain memory block to a certain value.
Parameters
WORD POINTER data | - Pointer to the block of words in memory. |
WORD value | - Value to set all words to. |
INT words | - Number of words to change the value of. |
Returns
INT : true
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 Loop frame; End End
Used in example: alloc(), memset(), say(), pointer Also usable in conjunction with map_buffer() with 16bit maps. (Example needed.)