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32 lines
1.5 KiB
Plaintext
32 lines
1.5 KiB
Plaintext
'''This page is maintained for historic purposes. The keyword is [[Keywords currently not supported by QB64|not supported in QB64]].'''
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----
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The [[FRE]] function returns the amount of memory available in bytes to running programs.
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{{PageSyntax}}
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: {{Parameter|memory}} = [[FRE]]({{Parameter|stringExpression$}})
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: {{Parameter|memory}} = [[FRE]]({{Parameter|numericalExpression}})
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{{PageDescription}}
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*'''[[Keywords currently not supported by QB64|Not supported in QB64.]]'''
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* Any {{Parameter|stringExpression$}} returns the size, in bytes, of free string storage space.
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** Also compacts the free string storage to a single block of memory.
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* {{Parameter|numericalExpression}} can be:
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** 0: returns the same value as using a string expression above.
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** -1: returns the size of the largest non-string array in bytes that could be dimensioned.
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** -2: returns the amount of stack space, in bytes, available to a running program.
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** Any other numerical value returns the size of the next block of string memory storage space.
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{{PageExamples}}
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{{CodeStart}} '' ''
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' {{Cl|$DYNAMIC}}
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PRINT "Sizes in bytes before dimensioning arrays: "; {{Cl|FRE}}(""), {{Cl|FRE}}(0), {{Cl|FRE}}(-1), {{Cl|FRE}}(-2)
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{{Cl|DIM}} Array(100, 100), Text$(5000)
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PRINT "Sizes in bytes after dimensioning arrays: "; {{Cl|FRE}}(""), {{Cl|FRE}}(0), {{Cl|FRE}}(-1), {{Cl|FRE}} (-2) '' ''
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{{CodeEnd}}
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''Notes:'' Sizes returned may vary by computer used. FRE(-2) must be used in a running program.
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{{PageNavigation}} |