C++: integer constant is too large for "long" type

[Jo Deni]

Folks,
I'm a newbie here (and with C++).
While executing a C++ program I'm getting the following message

error: integer constant is too large for "long" type

and here is the offending line in my code

double X = 10000000000;

(X is equal to 10^10)

The execution for X = 10^9 worked fine.
So what can I do to fix the problem?

Thanks,
Jo

 

[soxmax]

Folks,
I'm a newbie here (and with C++).
While executing a C++ program I'm getting the following message

error: integer constant is too large for "long" type

and here is the offending line in my code

double X = 10000000000;

(X is equal to 10^10)

The execution for X = 10^9 worked fine.
So what can I do to fix the problem?

Thanks,
Jo

try "long long" or "__int64" or "long double" instead of "double"

 

[Just Me]

Folks,
I'm a newbie here (and with C++).
While executing a C++ program I'm getting the following message

error: integer constant is too large for "long" type

and here is the offending line in my code

double X = 10000000000;

(X is equal to 10^10)

The execution for X = 10^9 worked fine. So what can I do to fix the problem?

Thanks,
Jo

don't you mean

double X = 1.0e10;

The compiler is trying to parse 10000000000 as an integer constant and it cannot do so.

 

[Kai-Uwe Bux]

Folks,
I'm a newbie here (and with C++).
While executing a C++ program I'm getting the following message

error: integer constant is too large for "long" type

and here is the offending line in my code

double X = 10000000000;

(X is equal to 10^10)

The execution for X = 10^9 worked fine.
So what can I do to fix the problem?

Try

double X = 10000000000.0;

Best

Kai-Uwe Bux

 

[tony_in_da_uk]

double X = 10000000000;
The execution for X = 10^9 worked fine.
So what can I do to fix the problem?

Hi Jo,

I think your compiler would first parse all elements in your program, and consider the number to be a 32 bit integer (at which time there's a problem), then later try to "promote" it to a double for assignment into X. Just write the number as a floating pointer constant to begin with: 1E10 or 1000000000000.0.

Tony

 

[Steve (archive)]

Folks,
I'm a newbie here (and with C++).
While executing a C++ program I'm getting the following message

error: integer constant is too large for "long" type

and here is the offending line in my code

double X = 10000000000;

(X is equal to 10^10)

The execution for X = 10^9 worked fine.
So what can I do to fix the problem?

Thanks,
Jo

10000000000 is trying to be a literal 'int', which is implicitly converted to the double X. You get the error as 10000000000 is too large for a 32 bit int. If you use:

double X = 10000000000.0;

it should be fine.

Steve.

 

[440gtx]

and here is the offending line in my code

double X = 10000000000;

So what can I do to fix the problem?

double X = 10000000000LL;

 

[Old Wolf]

double X = 10000000000LL;

LL is not defined in the current C++ standard.
Your compiler might support it as an extension,
but it would be better to use 1E10 or 10000000000.0 .