Questions tagged [character-literals]
6 questions
1
vote
3 answers
What does '9' mean in C?
When writing '9' instead of 9 as my char c my endresult becomes negative and wrong for some reason. Why is that? What does '9' do?
#include
int main() {
int a, b;
char c = '9';
a = 44;
b = a - c;
printf("%d \n", b);
…
Cryme
- 21
- 3
1
vote
1 answer
How to compile the extended character in C++ using GCC?
The following code fails to compile using GCC:
int main()
{
for(int j=0; j<80; j++) //for every column,
{ //ch is ‘x’ if column is
char ch = (j%8) ? ‘ ‘ : ‘x’; //multiple of 8, and
cout << ch; //‘ ‘ (space) otherwise
}
…
Jena Travolta
- 33
- 6
1
vote
0 answers
Ascii immediate in gas?
Is there a way to enter in a character as an immediate in gas? For example:
mov $1, %rax # decimal
mov $0xA, %rbx # hex
mov $0b100, %rcx # binary
mov 'A', %rdx # something like this?
I know I can define this in the .ascii or .string…
David542
- 104,438
- 178
- 489
- 842
1
vote
2 answers
How do C++ compiler interpret comparison logic in string/character?
When we compare numbers in a string/character format, how does the c++ compiler interpret it? The example below will make it clear.
#include
using namespace std;
int main() {
// your code goes here
if ('1'<'2')
cout<<"true";
…
gitartha
- 95
- 9
0
votes
1 answer
Escape Character's unusal behavior
I'm getting an unintended output from this code.
int main() {
int var;
while ((var = getchar() ) != '\n') {
if (var == '\t')
printf("\\t");
if (var == '\b')
printf("\\b");
if (var ==…
A typical nerd
- 69
- 1
- 4
0
votes
3 answers
How does C language transform char literal to number and vice versa
I've been diving into C/low-level programming/system design recently. As a seasoned Java developer I still remember my attemtps to pass SUN Java Certification and questions if char type in Java can be cast to Integer and how can that be done. That…
Chlebik
- 646
- 1
- 9
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