All Questions
Tagged with switch-statement c
1,096
questions
1
vote
1
answer
33
views
_Generic Statement For An Enumerator (Enum)?
I frequently have to deal with the functionality of enums in C. However, there doesn't seem to be an easy & equally efficient way of supplying a different result based off of a predefined enum ...
- 96
2
votes
1
answer
99
views
Is There a Pragmatic Solution to Remove Enum Switches?
The title of this question is a little strange-sounding, but I could think of no better way to word it. My problem is this; I have a type inside a project called AmbiguousType, which is a union in ...
- 96
-1
votes
1
answer
120
views
The implementation of a switch-statement in ARM assembly seems too minimal
I was learning about how switch-statements work under the hood in C, so I decided to look at the compiled code. From what I understand, C uses a jump table to implement switch-statements. However, I ...
- 13
0
votes
1
answer
63
views
Immediate break after input using switch or if
I am learning C right now and im at the very beginning.
Here's my code:
#include <stdio.h>
int main (){
char operator;
double num1;
double num2;
double result;
printf("\n Enter an ...
1
vote
0
answers
61
views
Differences in Compilation Results Between GCC and Clang
I encountered a situation where my C code compiles successfully with GCC but generates errors when compiled with Clang.
Here is my C code:
#include <stdio.h>
#include <stdlib.h>
#include &...
- 63
0
votes
1
answer
49
views
Calculation of income tax owed is not working correctly
this program will calculate your tax bracket by the entering your income and your marital status, s for single and m for married.
The program will prompt you to enter income, then marital status. ...
- 11
2
votes
2
answers
127
views
Runtime cast of void pointer
I'm writing a C program that applies a different type of quantization to an array depending on an environmental variable.
The problem is that, I need to use the same function void foo(void* ptr, ...
0
votes
1
answer
265
views
Seeking Cython Optimization for Conditional Branching: Is There an Equivalent to switch?
I am currently working on a Python project that I need to rewrite in Cython to enhance performance. In this Python code, there is a segment that uses a series of if/elif statements to determine the ...
- 1,435
1
vote
1
answer
68
views
Nested switch statment using X-macros
#define LIST_D1(val, mask, _lc, _UC, comment, parentDictId) \
__BTN(val 1, mask ~0, _lc##cred_amazon_mws_token, _UC##CRED_AMAZON_MWS_TOKEN, comment N_("Amazon MWS Auth Token"), ...
- 568
0
votes
4
answers
98
views
How do I break out of a while loop from within a switch in an if else statement in C?
I was trying out simple activities about if statements, switches, and loops while studying programming and I ran into this problem.
while (1) {
if (/*condition*/) {
//error
} else {
...
- 11
0
votes
1
answer
57
views
Calculating the geometric series with different values in C but my outputs for some values are huge
I have written code in C to calculate the geometric series for three different cases. The values for the three cases are as follows.
case 1:
n=10000,a=2.0,r=0.01.
Case 2:
n=500,a=0.01,r=1.1.
Case 3:
n=...
- 401
1
vote
1
answer
58
views
Tokenizing a string inside a switch statement - C
I've been having a lot of trouble using strtok in a switch statement . Here's the code
int main(int argc, char *argv[]) {
char phrase[256];
printf("type a phrase to examine\n\n");
...
0
votes
0
answers
55
views
How can a foor loop with an array index be 3x slower then a switch case into a function that does the same thing?
I was benchmarking function pointers vs switch case statements in quick-bench and got the expected result. Function pointers are slower than switch case. But I wanted to remove the operation from the ...
0
votes
2
answers
139
views
declaring switch statement and then calling it later
I've developed a code that creates concentric rectangles of alphabets based on the input, unfortunately as there's no dictionary function in C, I've used switch statement to convert my numerical value ...
0
votes
0
answers
55
views
switch case performance and probability [duplicate]
I am writing a c string parser and i want it as fast as possible. I know that in the stream certain occurance of characters could (will) be more probable than others, i could write an if else to ...
