info about strings

This commit is contained in:
Win 2024-05-21 20:48:40 +07:00
parent 0ed9ce82e6
commit 0ac77260b3
6 changed files with 118 additions and 0 deletions

BIN
string Executable file

Binary file not shown.

38
string.c Normal file
View File

@ -0,0 +1,38 @@
#include <stdio.h>
#include <stdlib.h>
int main() {
char *text, c;
int i = 0;
// this returns as a pointer
text = (char*) malloc(1 * sizeof(char));
printf("%p\n", text);
// the size function will print out 8 bytes as it is
// calculating the size of the pointer, not the actual
// value itself. to do that, you gotta dereference it first
size_t size = sizeof(*text);
printf("%d\n", *text);
printf("Size in bytes: %d bytes\n", (int)size);
while(c = getc(stdin), c != '\n') {
text[i] = c;
i++;
printf("===========================================\n");
printf("Num of characters: %d\n", i);
printf("Current char: %c\n", text[i]);
printf("Address of current char: %p\n", &text[i]);
printf("===========================================\n\n");
char* deez = realloc(text, i * sizeof(char));
//printf("%s", deez);
}
printf("The Text: %s\n\n", text);
// size_t size = sizeof(*text);
// printf("Size in bytes: %d bytes\n", (int)size);
return 0;
}

15
temp-input.c Normal file
View File

@ -0,0 +1,15 @@
#include <stdio.h>
#define LOWER 0
#define STEP 20
#define END 200
int main() {
float fahr, celsius;
printf("Fahrenheit\tCelsius\n");
for(fahr = LOWER; fahr <= END; fahr += STEP) {
celsius = (5.0/9.0) * (fahr - 32.0);
printf("%3.1f\t\t%3.1f\n", fahr, celsius);
}
}

15
temp.c Normal file
View File

@ -0,0 +1,15 @@
#include <stdio.h>
#define LOWER 0
#define STEP 20
#define END 200
int main() {
float fahr, celsius;
printf("Fahrenheit\tCelsius\n");
for(fahr = LOWER; fahr <= END; fahr += STEP) {
celsius = (5.0/9.0) * (fahr - 32.0);
printf("%3.1f\t\t%3.1f\n", fahr, celsius);
}
}

BIN
test/main Executable file

Binary file not shown.

50
test/main.c Normal file
View File

@ -0,0 +1,50 @@
#include <stdio.h>
int main() {
// declaring and defining the 14 digit numbers
int digits[] = {3, 4, 2, 1, 5, 6, 8, 3, 1, 5, 1, 5, 6, 5};
// declaring the variable for the total of the first, third, fifth elements and so on...
int sum_odd;
printf("=====================================\n");
printf("First set of digits\n");
printf("=====================================\n");
// loop through the first, third, fifth element and so on
for(size_t i = 0; i < (sizeof(digits) / sizeof(digits[0])); i += 2) {
// multiplying the value of each element by 2
digits[i] = digits[i] * 2;
printf("Element %d: %d\n", ((int)i + 1), digits[i]);
// adding the value of the current element to the old sum_even value
sum_odd += digits[i];
}
// declaring the variable for second, forth, sixth elements and so on...
int sum_even;
printf("\n");
printf("=====================================\n");
printf("Second set of digits\n");
printf("=====================================\n");
// loop through the second, forth, sixth digits and so on
for(size_t j = 1; j < (sizeof(digits) / sizeof(digits[0])); j += 2) {
// multiplying the value of each element by 2
digits[j] = digits[j] * 2;
printf("Element %d: %d\n", ((int)j + 1), digits[j]);
// adding the value of the current element to the old sum_even value
sum_even += digits[j];
}
// add the sum of sum_odd and sum_even together
int total = sum_odd + sum_even;
// print out the value
printf("\n");
printf("=====================================\n");
printf("Total: %d\n", total);
printf("=====================================\n");
return 0;
}