BUG: Memory Leak Caused by Formatted Internal WRITELast reviewed: March 28, 1996Article ID: Q149154 |
The information in this article applies to:
SYMPTOMSPerforming a formatted internal WRITE causes a memory leak. A memory leak is caused by a program not releasing the memory it allocates.
RESOLUTIONUse list-directed I/O with an internal WRITE.
STATUSMicrosoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.
MORE INFORMATIONIn the following sample code, the memory storage area associated with the character string "LLINE" is not released after each internal WRITE. Consequently, additional memory must be allocated for each subsequent internal WRITE utimately causing all physical and virtual memory to be exhausted.
Sample Code to Illustrate Problem and Workaround! Compile options needed: none
PROGRAM TEST INTEGER I CHARACTER LLINE*32 DO I=1,1000000 WRITE(LLINE, '(I10,E20.5)') I, REAL(I) ! Memory leak here ! WRITE(LLINE, *) I, REAL(I) ! Uncomment this line for workaround END DO END |
Additional reference words: 4.00
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