Given only putchar (no sprintf, itoa, etc.) write a routine putlong that prints out an unsigned long in decimal. [ I gave the obvious solution of taking % 10 and / 10, which gives us the decimal value in reverse order. This requires an array since we need to print it out in the correct order. The interviewer wasn't too pleased and asked me to give a solution which didn't need the array ].

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Is there any possibility to create customized header file with c programming language?

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What are the different pointer models in c?

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64/square(4)

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Explain Function Pointer?

0 Answers   Wipro,

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WHAT IS THE DEFINATION OF IN TECHNOLOGY AND OFF TECHNOLOGY ?

1 Answers   IBM,

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Explain how can I remove the trailing spaces from a string?

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pierrot's divisor program using c or c++ code

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What will be printed as the result of the operation below: #include<..> int x; int modifyvalue() { return(x+=10); } int changevalue(int x) { return(x+=1); } void main() { int x=10; x++; changevalue(x); x++; modifyvalue(); printf("First output:%d\n",x); x++; changevalue(x); printf("Second output:%d\n",x); modifyvalue(); printf("Third output:%d\n",x); }

2 Answers  

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What's wrong with the call "fopen ("c:\newdir\file.dat", "r")"?

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How can I check whether a file exists? I want to warn the user if a requested input file is missing.

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What is operator promotion?

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