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How to remove the first and the last character of a string
I'm wondering how to remove the first and last character of a string in Javascript.
9 Answers
...
How do function pointers in C work?
... class:
typedef struct String_Struct* String;
struct String_Struct
{
char* (*get)(const void* self);
void (*set)(const void* self, char* value);
int (*length)(const void* self);
};
char* getString(const void* self);
void setString(const void* self, char* value);
int lengthString(const...
How to get the separate digits of an int number?
...
Convert it to String and use String#toCharArray() or String#split().
String number = String.valueOf(someInt);
char[] digits1 = number.toCharArray();
// or:
String[] digits2 = number.split("(?<=.)");
In case you're already on Java 8 and you happen to want t...
What should main() return in C and C++?
.... The valid C++ main signatures are:
int main()
and
int main(int argc, char* argv[])
which is equivalent to
int main(int argc, char** argv)
It is also worth noting that in C++, int main() can be left without a return-statement, at which point it defaults to returning 0. This is also true wi...
List columns with indexes in PostgreSQL
...constraint uk_test3ab unique (a, b));
List indexes and columns indexed:
select
t.relname as table_name,
i.relname as index_name,
a.attname as column_name
from
pg_class t,
pg_class i,
pg_index ix,
pg_attribute a
where
t.oid = ix.indrelid
and i.oid = ix.indexreli...
Difference between fprintf, printf and sprintf?
...tream is currently pointing.
sprintf writes formatted text to an array of char, as opposed to a stream.
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How to assign an exec result to a sql variable?
...esultForPos INT
EXEC @ResultForPos = storedprocedureName 'InputParameter'
SELECT @ResultForPos
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How come an array's address is equal to its value in C?
...rray, not the size of a single element. For example, with code like this:
char array[16];
printf("%p\t%p", (void*)&array, (void*)(&array+1));
We can expect the second pointer to be 16 greater than the first (because it's an array of 16 char's). Since %p typically converts pointers in hexa...
Best way to replace multiple characters in a string?
I need to replace some characters as follows: & ➔ \& , # ➔ \# , ...
13 Answers
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How to convert integer to string in C? [duplicate]
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Use sprintf():
int someInt = 368;
char str[12];
sprintf(str, "%d", someInt);
All numbers that are representable by int will fit in a 12-char-array without overflow, unless your compiler is somehow using more than 32-bits for int. When using numbers with gre...