在C语言中,遇到“implicit declaration of function 'gets' is invalid in c99”这样的错误消息,意味着编译器在编译代码时遇到了一个未声明的函数gets的调用,并且这个函数在C99标准中是无效的。下面我将分点解释这个问题: 1. implicit declaration的含义 “implicit declaration”指的是在代码中使用了某个函数,但没...
linux系统下,警告:warning: implicit declaration of function ‘gets’ [-Wimplicit-function-declaration] 和 war 字符数组 的英文名字是 char [] gets()函数的基本用法为:char *gets(char *s); 该函数的参数是一个字符数组,该函数的返回值也是一个字符数组。 linux下的代码如下: 1 #include <stdio.h> 2 ...
a2.c:6:5: warning: implicit declaration of function ‘gets’ [-Wimplicit-function-declaration] gets(a); ^ /tmp/cceyMQ7u.o: In function `main': a2.c:(.text+0x41): warning: the `gets' function is dangerous and should not be used. --- 原因: 问题出在程序中使用了 gets是非常不安...
a2.c:6:5: warning: implicit declaration of function ‘gets’ [-Wimplicit-function-declaration] gets(a); ^ /tmp/cceyMQ7u.o: In function `main': a2.c:(.text+0x41): warning: the `gets' function is dangerous and should not be used. --- 原因: 问题出在程序中使用了 gets是非常不安...
比如 隐式声明函数‘time’ [-Wimplicit-function-declaration] Linux命令行man 2 time,找到time函数用到的头文件加上就ok了 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #include 本文参与 腾讯云自媒体同步曝光计划,分享自作者个人站点/博客。 原始发表:2024-10-12,如有侵权请联系 cloudcommunity@tencent...
#include 但不起作用(重新编译还是有该warning) 加上编译选项-D_XOPEN_SOURCE又出现一大推其他编译错误 最后在找到这篇帖子 http://stackoverflow.com/questions/15334558/compiler-gets-warnings-when-using-strptime-function-c 在编译选项上同时加上-D_GNU_SOURCE -D__USE_XOPEN,即可解决...
Compiling thpool on Mac Os with lldb 370.0.42 triggers the above message. cc -Wall -D_GNU_SOURCE -std=gnu99 -O2 -g -c -o dep/thpool/thpool.o dep/thpool/thpool.c dep/thpool/thpool.c:298:3: warning: implicit declaration of function 'pthrea...
(void *)': daemon_example.cc:54: implicit declaration of function `int localtime_r(...)' *** Error code 1 make: Fatal error: Command failed for target `libdaemon_example_la-daemon_example.lo' Current working directory /devel/sources/mysql/mysql-5.1.30/plugin/daemon_example *** Error ...
Log in Anonymous Not applicable 18 Oct 2013 Hello everyone I find a dangerous situation at GCC default. Take a look my bundle, Debug.c line 9~16 Some function is nowhere but hex file has made. This GCC default is [ -Wimplicit-function-declaration ] It not rise an...
error: previous implicit declaration of 'some_function' was here Solution: Didn't your programming teacher tell you to always make function prototypes? He/she had good reason. It's also best to have them at the top, global space of the file, not in weird places. Yes, I have seen a ...