大约有 45,000 项符合查询结果（耗时：0.0260秒） [XML]
How do I base64 encode (decode) in C?
I have binary data in an unsigned char variable.
I need to convert them to PEM base64 in c.
I looked in openssl library but i could not find any function.
Does any body have any idea?
...
uint8_t can't be printed with cout
...
It doesn't really print a blank, but most probably the ASCII character with value 5, which is non-printable (or invisible). There's a number of invisible ASCII character codes, most of them below value 32, which is the blank actually.
You have to convert aa to unsigned int to output t...
BestPractice - Transform first character of a string into lower case
I'd like to have a method that transforms the first character of a string into lower case.
11 Answers
...
Java: parse int value from a char
I just want to know if there's a better solution to parse a number from a character in a string (assuming that we know that the character at index n is a number).
...
PostgreSQL “DESCRIBE TABLE”
... 'table' or \ds 'sequence' and so on)
The SQL standard way, as shown here:
select column_name, data_type, character_maximum_length, column_default, is_nullable
from INFORMATION_SCHEMA.COLUMNS where table_name = '<name of table>';
It's supported by many db engines.
...
Verifying that a string contains only letters in C#
...
This assumes a latin alphabet, where Char.IsLetter allows for non-latin alphabets.
– Paul van Brenk
Jul 28 '09 at 7:31
5
...
How to concatenate two strings in C++?
I have a private class variable char name[10] to which I would like to add the .txt extension so that I can open the file present in the directory.
...
Are there disadvantages to using a generic varchar(255) for all text-based fields?
...e , town , country , phone number etc, all of which are defined as VARCHAR(255) even though none of these fields will ever come close to having 255 characters. (If you're wondering, it's this way because Ruby on Rails migrations map String fields to VARCHAR(255) by default and I never bothe...
Reading and writing binary file
.... I have the following code, but the buffer only stores a couple of ASCII characters from the first line in the file and nothing else.
...
For every character in string
How would I do a for loop on every character in string in C++?
9 Answers
9
...