CODEWITHSUNDEEP
c++memory
Elgan Sayer
Elgan Sayer

Reputation: 11

'new' not working to create array?

I am going mental, boiled something down to simple, no matter how or what i try, an array will not work? whats up?

The code is simply a single cpp helloworld from cocos2dx. nothing more,

    double *Array = new double[333];
if (Array == nullptr)
    CCLOG("Error: memory could not be allocated");

//initialize it
for( int i = 0; i != 333; ++i){
    Array[i] = 333 - i;

}

for( int i = 0; i != 333; ++i){

    CCLOG("Hi %ld", Array[i] );     
}

The loop always prints 0....

Ive tried many loops, test, the array is never array. its ALWAYS just an int, or double, or whatever type of array i try?

Any thoguhts?

VS2012 cocos2dx helloworld stripped to nothing but an array now. Windows 10

Upvotes: 0

Views: 396

Answers (3)

Elgan Sayer
Elgan Sayer

Reputation: 11

the formatting was my mistake, i had not noticed to change it after trying, int, double, long, float etc.

The problem..went away after a reboot of my machine?

std::srray? How would this be used dynamically / resized?

Upvotes: 0

Pranit Bankar
Pranit Bankar

Reputation: 473

%ld is for long int. Use %lf for double.

Upvotes: 0

Serge Ballesta
Serge Ballesta

Reputation: 148870

Because you are trying to display a double with %ld format. %ld should be used only for long. IMHO you should :

  • either convert Array[i] to a long : 

    CCLOG("Hi %ld", (long) Array[i] );

  • or use %g format :

    CCLOG("Hi %g", Array[i] );

Both methods should give you correct display.

Upvotes: 6

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