[英]implicit declaration warning when trying getting home directory
I type this code to get the home directory. 我键入以下代码以获取主目录。 I have later edited it to include all of the code: 我后来对其进行了编辑,以包括所有代码:
#include <math.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <stdarg.h>
#include "anotherfile.h"
typedef unsigned int uint;
void Interval(void) {
static uint S = 0;
static uint C = 0;
static uint M = 0;
static uint D = 0;
usleep(10e5/0x20);
printf("%d\n", C);
printf("%d\n", S);
printf("%d\n", M);
if(C == 0x20) {
if(S == 59) {
S=0;
M++;
}else{S++;}
C=0;
}else{C++;}
Interval();
}
int main(int argc, const char *argv[]) {
char *HomeDir;
if((HomeDir = getenv("HOME")) == NULL) {
HomeDir = getpwuid(getuid())->pw_dir;
if(HomeDir == NULL) {
printf("Failed to get Home Directory\n");
}else{printf("Retry Home Directory Found\n");}
}else{printf("Success getting Home Directory\n");}
Interval();
return 0;
}
It gives me the implicit declaration warning. 它给了我隐式声明警告。 It says something is wong with the getenv
partHow can I fix it? 它说getenv
出了点问题我该如何解决?
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.