Questions tagged [conversion-specifier]
120 questions
0
votes
1 answer
How to make a request with a conversion specifier in Python?
I'm trying to send a query that is URL-encoded as follows. However, an error occurs because % and & in the query are recognized as conversion specifiers. How do I solve it?
import…
Sliced_ice
- 37
- 4
0
votes
1 answer
Sscanf will read ints but not doubles (c)?
I have the following stored in a char array
"1, 1.0, 1.000, 1.0000"
I am trying to parse it into an int and three doubles with the following
sscanf(myString, "%d %lf %lf %lf", &(myStruct->I1), &(myStruct->D1), &(myStruct->D2),…
LargeLizard
- 66
- 7
0
votes
3 answers
how to compare 2 input with if else in c? and how to make yes or no selection in c?
may i have some help?
Here's my script.
#include
void main(void) {
int u;
char ktp;
printf("Masukkan umur anda : ", &u);
scanf ("%i ", &u);
printf("Apakah anda memiliki ktp (y atau n): ", &ktp);
scanf…
Rey
- 1
- 1
0
votes
2 answers
Which placeholder should I use in and why?
Why the code only works when I use the %lf or %f place holder (second placeholder), but its printing 0 when I use %d?
#include
void main()
{
long id;
id = 123456789;
double Hourly;
Hourly = 30;
int HoursAday,…
jypedud
- 15
- 2
0
votes
2 answers
My while loop in C replays one more time than it should before it ends
When given input, my while loops print one time extra before closing its loop. For example, 8 7 38 3 -5 -1 q is my input that prints out
Provide 6 integer coefficients for the brute force equation solver:
Solution found: x = 3, y = 2
Run program…
0
votes
2 answers
I wonder why &a(Data type: char) is printed as value not address, using %s
#include
int main(void)
{
char var = 'z';
printf("[buf]: %s \n", &var); // the output is z~~~~~, but the first char of output is only z. why??
}
y J.
- 131
- 4
0
votes
1 answer
Erro expects argument of type ‘int’, but argument 3 has type ‘int *’
I'm trying to compile and display the address of each value into the arrays.
int i[10] = {1,2,3,4,5,6,7,8,9,10}, x;
float f[10] = {1,2,3,4,5,6,7,8,9,10};
double d[10] = {1,2,3,4,5,6,7,8,9,10};
/*int *p_i = &i; …
ButchBet
- 11
- 1
0
votes
2 answers
what does mean this exception ? format %d expects argument of type 'int', but argument 2 has type 'long long unsigned int' [-Wformat]
I'm a student trying to learn C and C++, I've got a problem with the specifier %d I dont't understand the exception that is written in the console, It's writing
The format %d expects argument of type 'int', but argument 2 has type 'long long…
elie reveillaud
- 49
- 2
0
votes
2 answers
static variable changing value with no error displayed?
Code:
#include
int main()
{
int a=10;
static int b=2;
a = a+1;
b = b-1;
printf("%d \n",a);
printf("%d \n",b);
printf("%d \n","%d",a,b);
return 0;
}
Output:
11
1
4210693
My Question:
b is a static…
user134613
- 109
- 4
0
votes
3 answers
Having error:invalid type argument of unary '*" (have 'int')
This is my first question on here and im still learning c, and i was writing this code to enter details of a user bank account to file and reading all records back from file, when the error,
error:invalid type argument of unary '*" (have 'int')…
silvercen
- 11
- 3
0
votes
0 answers
Need help on format string vulnerability
#include
#include
#include
int main(int argc, char **argv){
int i = 1;
char buffer[64];
snprintf(buffer, sizeof buffer, argv[1]);
buffer[sizeof (buffer) - 1] = 0;
printf("Change i's value from 1…
0
votes
4 answers
Why is the sum of two Integers in this case not working?
I'm new to C Programming and I am stuck on a simple problem. Here is the following code...
#include
/* Write a C Program that accepts two integers from the
user and calculate the sum of the two intergers. Go to the editor!
*/
int…
Gregory
- 177
- 6
0
votes
2 answers
16bit unsigned int array outputting more elements than initialized size in c
I'm trying to feed data into an array and change only a few values and leaving the rest 0, but I keep receiving much more data than the array should theoretically hold. Here is my code compiled and run with
gcc -o arr arrayconst.c
#include…
rob ell
- 45
- 7
0
votes
1 answer
Unable to change certain array data by passing address of pointer to an array as argument to the function
The b array stores the address of the a array which contains single character value. But by calling the fun function I want the the each b array element may contain string (multicharacter) value.
Suppose I want to change the *b[1] value in the array…
user3559780
- 351
- 1
- 2
- 12
0
votes
0 answers
Why is there no output when I use a float conversion specifier in C
I wrote the code below for a lab assignment, but the output isn't what I expect. There are no errors, but the formatted float doesn't show up. May someone explain what I'm doing wrong?
Any help would be greatly appreciated.
My code:
/*Include…
user13316497
- 21
- 2