Top "128-bit" questions

Are 64 bit programs bigger and faster than 32 bit versions?

I suppose I am focussing on x86, but I am generally interested in the move from 32 to 64 bit. Logically, I …

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Is there a 128 bit integer in gcc?

I want a 128 bit integer because I want to store results of multiplication of two 64 bit numbers. Is there any …

c gcc x86-64 bigint 128-bit

How can I add and subtract 128 bit integers in C or C++ if my compiler does not support them?

I'm writing a compressor for a long stream of 128 bit numbers. I would like to store the numbers as differences …

c++ integer 128-bit

How to know if __uint128_t is defined

We can use the preprocessor to know if unsigned long long is defined: #include <limits.h> #ifndef ULLONG_…

c c-preprocessor 128-bit

Cannot use 128bit float in Python on 64bit architecture

I checked the size of a pointer in my python terminal (in Enthought Canopy IDE) via import ctypes print (ctypes.…

python numpy 128-bit

How to use Gcc 4.6.0 libquadmath and __float128 on x86 and x86_64

I have medium size C99 program which uses long double type (80bit) for floating-point computation. I want to improve precision …

gcc floating-point precision 128-bit

Does gcc support 128-bit int on amd64?

Does gcc support 128-bit int on amd64? How to define it? How to use scanf/printf to read/write it?

c gcc 128-bit extended-precision

128 bit integer on cuda?

I just managed to install my cuda SDK under Linux Ubuntu 10.04. My graphic card is an NVIDIA geForce GT 425M, …

integer cuda nvidia 128-bit

Fastest way to convert binary to decimal?

I've got four unsigned 32-bit integers representing an unsigned 128-bit integer, in little endian order: typedef struct { unsigned int part[4]; } …

c bigint bignum 128-bit

C 128 bit double type

I have the following code... ran_int = rand(); //check READ ME Citation B if (input == 32){ //rand() with 2^31 as lower limit …

c types binary double 128-bit