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How to change a string into uppercase
...
It works for char type as well. Thank you for your helpful answer.
– yves Baumes
Jan 16 '16 at 14:01
2
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How can I save application settings in a Windows Forms application?
...gs. Right click on the project in Solution Explorer and choose Properties. Select the Settings tab and click on the hyperlink if settings doesn't exist.
Use the Settings tab to create application settings. Visual Studio creates the files Settings.settings and Settings.Designer.settings that contain...
Convert a string representation of a hex dump to a byte array using Java?
...;
for (int i = 0; i < len; i += 2) {
data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4)
+ Character.digit(s.charAt(i+1), 16));
}
return data;
}
Reasons why it is an improvement:
Safe with leading zeros (unlike BigInteger) and wit...
Coding Practices which enable the compiler/optimizer to make a faster program
...w customer\n"
"3) Destroy\n"
"4) Launch Nasal Demons\n"
"Enter selection: ";
static const size_t Menu_Text_Length = sizeof(Menu_Text) - sizeof('\0');
//...
std::cout.write(Menu_Text, Menu_Text_Length);
The efficiency of this technique can be visually demonstrated. :-)
Don't use print...
How to remove first 10 characters from a string?
How to ignore the first 10 characters of a string?
12 Answers
12
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How to print a int64_t type in C
...t:
#include <stdio.h>
#include <stdint.h>
int main(int argc, char *argv[])
{
int64_t a = 1LL << 63;
uint64_t b = 1ULL << 63;
printf("a=%jd (0x%jx)\n", a, a);
printf("b=%ju (0x%jx)\n", b, b);
return 0;
}
Compiling this code with gcc -Wall -pedantic -...
How to determine if a string is a number with C++?
...nt way would be just to iterate over the string until you find a non-digit character. If there are any non-digit characters, you can consider the string not a number.
bool is_number(const std::string& s)
{
std::string::const_iterator it = s.begin();
while (it != s.end() && std:...
Reasons for using the set.seed function
...
The char2seed function in the TeachingDemos package allows you to set the seed (or choose a seed to pass into set.seed) based on a character string. For example you could have students use their name as the seed then each studen...
Objective-C formatting string for boolean?
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In Objective-C, the BOOL type is just a signed char. From <objc/objc.h>:
typedef signed char BOOL;
#define YES (BOOL)1
#define NO (BOOL)0
So you can print them using the %d formatter But that will only print a 1 or a 0, not YES or NO.
Or you can...
Smooth scrolling when clicking an anchor link
...ash);
});
Explanation of href*=\\#:
* means it matches what contains # char. Thus only match anchors. For more about the meaning of this, see here
\\ is because the # is a special char in css selector, so we have to escape it.
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