auvKone

线程共享属性包括：

#include        int strcasecmp(const char *s1, const char *s2);       int strncasecmp(const char *s1, const char *s2, size_t n);       char *index(const char *s, int c);       

# kill -l 1) SIGHUP       2) SIGINT       3) SIGQUIT      4) SIGILL       5) SIGTRAP 6) SIGABRT      7) SIGBUS       8) SIGFPE       9) SIGKILL     10) SIGUSR111) SIGSEGV     12) SIGUSR2     13)

静态断言static_assert，assert宏是运行时断言，而static_assert是编译时断言。static_assert(常量表达式，“错误消息”);static_assert(sizeof(a) == sizeof(b), "Not have same width");注意：static_assert断言的表达式结果必须在编译时期可以计算的表达式，即必须是常量表达式。否则

证书中的DNS指的是X509v3扩展里面的X509v3 Subject Alternative Name；可以使用命令查看openssl x509 -text -noout -in 1.crt输出如下：X509v3 extensions: X509v3 Subject Alternative Name: DNS: test.com代码如下：#include <stdio.h

Talk is cheap, show me the code!#include <stdio.h>#include <stdlib.h>#include <assert.h>#include <openssl/bio.h>#include <openssl/x509v3.h>int main(int argc, char **argv){ char cn[256] = "";