Microsoft KB Archive/40587

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Floating-Point Routines Are Not Reentrant

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Q40587

6.00 6.00a 6.00ax 7.00 | 1.00 1.50 1.51 1.52 MS-DOS | WINDOWS kbprg - The information in this article applies to: - The C Run-time (CRT), included with: - Microsoft C for MS-DOS, versions 6.0, 6.0a, and 6.0ax - Microsoft C/C++ for MS-DOS, version 7.0 - Microsoft Visual C++ for Windows, versions 1.0, 1.5, 1.51, and 1.52 - The Microsoft C run-time library math routines are nonnreentrant and accordingly do not save and restore the registers used on the 80x87 floating-point coprocessor. If you want to develop a program that requires the math coprocessor to be reentrant, you must provide your own routines that save and restore the registers of the coprocessor. Additional reference words: kbinf 6.00 6.00a 6.00ax 7.00 1.00 1.50 KBCategory: kbprg KBSubcategory: CRTIss

Keywords : kb16bitonly

Issue type :

Technology : kbVCsearch kbAudDeveloper kbCRT