All Forums  Origin Forum for Programming  Forum for Origin C  Calling null function pointers in NAG functions

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by gpoon[/i] [br]Origin Ver. 8 and Service Release 5 (Select Help-->About Origin): Operating System: Win XP I am trying to using a NAG function, d02ejc, which according to the NAG manual accepts specific the NAG-defined null function pointers NULLFN and NULLDFN in its arguments. However, when I try to use them, the compiler frustrates me with "Error, cannot convert argument in function call." I know that this error is related to these two pointers because when I avoid them altogether with explicit functions, the program compiles and works correctly. Both NULLFN and NULLDFN are defined in nag.h as #ifndef NULLFN #define NULLFN 0 #endif #ifndef NULLDFN #define NULLDFN 0 #endif Changing to NULLFN NULL or NULLFN (void *)0 doesn't seem to matter. Any help is appreciated! Since NULLFN and NULLDFN are also used (optionally) in other NAG functions such as d02cjc and d02qfc, I am hoping there are others who have encountered this issue. Thanks in advance, Gregory [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.