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Questions - atoi

using atoi to convert command-line arguments to int, is only returning the first digit entered

I have to use command line arguments to set up a map for a snake game for my uni assignment. We were not specifically told to use atoi to help convert the command line argument from string to int, How...
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yer

c

type-conversion

command-line-arguments

atoi

Votes: 0

Answers: 2

Latest Answer

A single character is not a string. A string is an array of characters with null termination at the end. You should do something like this instead: bool checkUserArg (const char* arg1, const char* arg...
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Lundin

How to declare a variable using string concatenation and use that variable to print and integer defined as variable in C?

Getting output as 0 instead of defined value #include <stdio.h> #include <stdlib.h> #include <string.h> int main() { char *val; char MODE_VAR[1000]="MODE0"; int MODE0_SE...
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Gaurav Panchanan

c

string

strcat

atoi

Votes: 0

Answers: 0

How should I fill in the printf statements in this code?

I have an assignment where we've been asked to analyze the code below and fill in what the printf staments should be. I'm kind of stuck, so any recommendations would be greatly appreciated. #include &...
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mindsmurf528

if-statement

arguments

printf

atoi

Votes: 0

Answers: 1

Latest Answer

If you want to print data value printf("%d", data); If you want to print any random string value printf("Print whatever you want here");
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Bipin Gawand

Is there a fast way to convert a string of 8 ASCII decimal digits into a binary number?

Consider 8 digit characters like 12345678 as a string. It can be converted to a number where every byte contains a digit like this: const char* const str = "12345678"; const char* const base...
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Serge Rogatch

c++

parsing

simd

avx2

atoi

Votes: 0

Answers: 4

Latest Answer

Multiplication in binary is just a series of shift & adds. A SWAR approach shouldn't be too hard to understand. For a detailed walk-thru see: https://johnnylee-sde.github.io/Fast-numeric-string-t...
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aqrit

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