jiaju_cao的专栏

Sin函数的实现，根据无穷级数展开，求的Sin函数的实现方法

#include<stdio.h> void startTips() { char ch; //int intN; do{ printf("do you want continue ?"); // input int //scanf("%d",&intN); scanf(" %c"...

Example: _POSIX_C_SOURCE; #include <stdio.h> #include <stdlib.h> #include <string.h> #include<fcntl.h> #include <sys/types.h> #include <unistd.h> #include <sys...

undefined reference to `pthread_once' undefined reference to `pthread_create' Solve the question,by install depend: Posible1: sudo apt-get install manpages-posix manpages-posix-dev Posible ...

#include <stdio.h> #include<unistd.h> #include<stdlib.h> int main() { int support_level = 0; #ifdef _POSIX_VERSION support_level = 1; #endif if(support_level == 1) ...