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warning: implicit declaration of function
...s to declare function prototype in header.
Example
main.h
#ifndef MAIN_H
#define MAIN_H
int some_main(const char *name);
#endif
main.c
#include "main.h"
int main()
{
some_main("Hello, World\n");
}
int some_main(const char *name)
{
printf("%s", name);
}
Alternative with one file...
What's the difference between a Python module and a Python package?
...le (or files) that are imported under one import and used.
e.g.
import my_module
A package is a collection of modules in directories that give a package hierarchy.
from my_package.timing.danger.internets import function_of_love
Documentation for modules
Introduction to packages
...
How do I create a multiline Python string with inline variables?
...ti-line string
string1 = "go"
string2 = "now"
string3 = "great"
multiline_string = (f"I will {string1} there\n"
f"I will go {string2}.\n"
f"{string3}.")
print(multiline_string)
I will go there
I will go now
great
Variables in a lengthy single-lin...
How to detect total available/free disk space on the iPhone/iPad device?
...
Original answer:
I found the following solution working for me:
-(uint64_t)getFreeDiskspace {
uint64_t totalSpace = 0;
uint64_t totalFreeSpace = 0;
NSError *error = nil;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSDic...
Aren't Python strings immutable? Then why does a + “ ” + b work?
...
Consider:
>>> a='asdf'
>>> a.__repr__
<method-wrapper '__repr__' of str object at 0x1091aab90>
>>> a='asdf'
>>> a.__repr__
<method-wrapper '__repr__' of str object at 0x1091aab90>
>>> a='qwer'
>>> a.__repr_...
How to set selected value of jquery select2?
...d" value of a Select2 component:
$('#inputID').select2('data', {id: 100, a_key: 'Lorem Ipsum'});
Where the second parameter is an object with expected values.
UPDATE:
This does work, just wanted to note that in the new select2, "a_key" is "text" in a standard select2 object. so: {id: 100, text:...
How to Batch Rename Files in a macOS Terminal?
...bash is the default shell on macOS):
for f in *.png; do echo mv "$f" "${f/_*_/_}"; done
Note: If there's a chance that your filenames start with -, place -- before them[1]:
mv -- "$f" "${f/_*_/_}"
Note: echo is prepended to mv so as to perform a dry run. Remove it to perform actual renaming.
Y...
In node.JS how can I get the path of a module I have loaded via require that is *not* mine (i.e. in
...'t want to) modify the module's code, so don't have a place to extract its __dirname.
7 Answers
...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...-bb04-c4fba00686a7
ONBOOT=yes #no 改成yes 启动自动激活
NM_CONTROLLED=yes
BOOTPROTO=static #原来的DHCP 改成static
IPADDR=192.168.8.106 #根据自己的情况修改
NETMASK=255.255.240.0
GATEWAY=192.168.0.254 #我要连接外网所以加了网关和DNS
DNS...
Timeout on a function call
....:
# This function *may* run for an indetermined time...
In [3]: def loop_forever():
...: import time
...: while 1:
...: print("sec")
...: time.sleep(1)
...:
...:
# Register the signal function handler
In [4]: signal.signal(signal.SIGALR...