On 5/20/24 12:28, Aryabhata wrote:
The `limits.h` header file in C provides the necessary information about system limits, including `LONG_BIT`. You can write a small C program to print the value of `LONG_BIT`.Create a simple C program that includes the `limits.h` header and prints the value of `LONG_BIT`.#include <stdio.h> #include <limits.h> int main() { printf("LONG_BIT: %d\n", LONG_BIT); return 0; } This will output the number of bits in a "long" integer on your system.
Or use AC_COMPUTE_INT. You can do something like AC_COMPUTE_INT([var], [LONG_BIT], [#include <limits.h>])