Discussion :: Variable Number of Arguments - Point Out Errors (Q.No.7)
|Riz said: (Sep 28, 2010)|
|Can anyone explain?|
|Rujuta Kelkar said: (Jul 28, 2011)|
|PlZ explain. Its kinda difficult to understand. We need more explanation.|
|Rajan said: (Aug 18, 2011)|
|Sir please explain the answer of this question.|
|Prem said: (Aug 22, 2011)|
|Please kindly explain in brief.|
|Sunil Kumar Yadav said: (Sep 11, 2011)|
|Kindly explain in briefly?|
|Bond said: (Dec 1, 2011)|
|Is there any one who can explain it ?|
|Nuzhat said: (Dec 6, 2011)|
|va_list(variable list) is user defined data type...
=>argument pointer(ptr) traverse through the variable arguments passed in the function...
=>points ptr to the argument, in dis case n ie 3
=>moves teh ptr to next variable argument
num = va_arg(ptr, int);
so printf print 7...
|Siva said: (Jan 18, 2013)|
|We need to declare the pointer *ptr as va_list type because this is variable argument function type.|
|Sacy143 said: (May 22, 2015)|
|va_list it hold the no. of arguments and data type and it's define in header file #include<stdarg.h>.
It should be use when you going to developed the function.
|Vivek said: (Jun 11, 2015)|
|Yes. Because in advance we do not know the data type. So we can not declare pointer variable to a particular data type. So we must have to declare the pointer variable of va_list type.|
|Ratna said: (Sep 2, 2017)|
|Please explain in briefly.|
|Rathika said: (Mar 3, 2018)|
|Please explain the program briefly.|
|Lotus said: (Mar 20, 2018)|
|As the number of arguments passed to varfun is infinite which is unpredictable.
So memory space is not allocated.
|Zeus said: (Jul 28, 2018)|
|The function varfun() can take only int type parameters but we are sending float type parameters too.
So shouldn't the Error be too many parameters.
|Nithya said: (Aug 18, 2018)|
|Please explain the answer.|
|Priya said: (Jan 10, 2019)|
|Explain what is the function of va_list()?|
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