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Ichitakasan

A pure C problem: function with undefined arguments...

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Hello there! Here is my problem: I would like to create a function which looks like this: void logMessage(const char *message, ...){ // Opening a file called "Log.txt" FILE *file = fopen("log.log", "at"); // Forwarding all the arguments of the function fprintf(file, message, ...); // ... then closing file ..... } Basically, the function''s role is to update a ''Log.txt'' text file with ''printf-like'' arguments. The point is: how to forward the function arguments into the ''fprintf'' function? I''ve not been able to find an answer after 2 days of coding!!! Maybe there''s no solution after all !?!? ...... we never know ...... ^^'' "A bientot!"

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void logMessage(const char *message, ...){

FILE *file = fopen("log.log", "at");

va_list va;
va_start(va, message);
vfprintf(file, message, va);
va_end(va);

fclose(file);
}

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Thanks a lot for your help! IT WORKS!!! But where do these va_stuff come from? I didn't know anything about this 'stdarg.h' function...

"A bientot!"

[edited by - Ichitakasan on April 4, 2004 1:12:08 AM]

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