15 Run-Time Memory Issues

This chapter answers questions which are related to DJGPP run-time memory allocation.

• How much memory: How much memory can your program use.
• Confusing alloc: Allocation mechanism peculiarities.
• QDPMI VM: QDPMI doesn't provide virtual memory.
• QDPMI alloc: QDPMI/Windows 9X memory allocation peculiarities.
• Windows alloc: VM issues under Windows 3.X.
• Windows9X alloc: VM peculiarities under Windows 9X.
• EMM386 alloc: Some versions of EMM386 are limited to 32 MBytes.
• Swap out: How much VM do spawned program have?
• Stack size: How large is the stack and how to enlarge it?
• Windows 98: Memory-related problems in Windows 98.