Category : gcc

I installed Sqlite using the official link and tools, I can do sqlite3 and then create database etc… now I have a C file and it contains : #include <stdio.h> #include <sqlite3.h> // more code … and when I do gcc sel.c I get fatal error: sqlite3.h: No such file or directory I can’t find ..

Read more

Both GCC and Clang support an implementation-defined function called __builtin_parity that helps determine the parity of a number. According to what GCC states: Built-in Function: int __builtin_parity (unsigned int x)     Returns the parity of x, i.e. the number of 1-bits in x modulo 2. This means that if the number of 1-bits is even, it ..

Read more

I would like to do the following: std::string b = "b"; is_in("a", { "a", "b", "c" }); is_in("d", { "a", "b", "c" }); is_in(b, { "a", "b", "c" }); // fails is_in(b, std::array{ "a", "b", "c" }); using the templates template<typename Element, typename Container> bool is_in(const Element& e, const Container& c) { // https://stackoverflow.com/questions/20303821/how-to-check-if-string-is-in-array-of-strings return ..

Read more

While reading the section about exception handling and the compiler flag -fno-exceptions in the gcc manual, I came across the following lines: Exception handling overhead can be measured in the size of the executable binary, and varies with the capabilities of the underlying operating system and specific configuration of the C++ compiler. On recent hardware ..

Read more