expanded readme

LICENSE.md

@@ -0,0 +1,9 @@
+MIT License
+
+Copyright (c) 2019 Matthias M.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -1,3 +1,5 @@
+![GitHub release](https://img.shields.io/github/release/MattMoony/propaganda.c.svg) ![GitHub top language](https://img.shields.io/github/languages/top/MattMoony/propaganda.c.svg) ![GitHub last commit](https://img.shields.io/github/last-commit/MattMoony/propaganda.c.svg) ![GitHub All Releases](https://img.shields.io/github/downloads/MattMoony/propaganda.c/total.svg) ![GitHub repo size in bytes](https://img.shields.io/github/repo-size/MattMoony/propaganda.c.svg) ![GitHub](https://img.shields.io/github/license/MattMoony/propaganda.c.svg)
+
 # propaganda.c
 _A C-library for string manipulations_
 
@@ -511,7 +513,205 @@ printf("Trimmed: %s\n", trimmed);
 
 ![exa23_output](media/23.JPG)
 
-**-- to be continued --**
+#### Integer to character
+
+In order to convert an integer to its character representation, you can use the `itoc((int) n)`.
+
+```C
+// ...
+
+int number = 8;
+char n_chr = itoc(8);
+
+printf("As character: %c\n", n_chr);
+
+// ...
+```
+
+![exa24_output](media/24.JPG)
+
+#### Character to integer
+
+You can also do it the other way around by using the `ctoi((char) c)` function.
+
+```C
+// ...
+
+char n_chr = '2';
+int number = ctoi(n_chr);
+
+printf("As integer: %d\n", number);
+
+// ...
+```
+
+![exa25_output](media/25.JPG)
+
+#### Convert to string
+
+The following are all functions to convert several datatypes to a _string_.
+  * ##### Integer to string
+    To convert an integer to a _string_, use the `itos((int) n)` function.
+
+    ```C
+
+    int my_int = 802;
+    char* my_str = itos(my_int);
+
+    printf("String: %s\n", my_str);
+
+    ```
+
+    ![exa26_output](media/26.JPG)
+
+  * ##### Boolean value to string
+    To convert a boolean value to a _string_, you should use the `btos((int) b)` function.
+
+    ```C
+
+    int my_boo = 0;
+    char* my_str = btos(my_boo);
+
+    printf("String: %s\n", my_str);
+
+    ```
+
+    ![exa27_output](media/27.JPG)
+
+  * ##### Long to string
+    To convert a long to a _string_, you can use the `ltos((long) n)` function.
+
+    ```C
+    // ...
+
+    long my_lon = 8000000l;
+    char* my_str = ltos(my_lon);
+
+    printf("String: %s\n", my_str);
+
+    // ...
+    ```
+
+    ![exa28_output](media/28.JPG)
+
+  * ##### Float to string
+    To convert a float to a _string_, use the `ftos((float) n, (int) r)` function.
+
+    **Note:** The `r` parameter specifies how many decimals to round to.
+
+    ```C
+    // ...
+
+    float my_flo = 3.141f;
+    char* my_str = ftos(my_flo, 3);
+
+    printf("String: %s\n", my_str);
+
+    // ...
+    ```
+
+    ![exa29_output](media/29.JPG)
+
+  * ##### Double to string
+    To convert a double to a _string_, you should use the `dtos((double) n, (int) r)` function.
+
+    **Note:** The `r` parameter specifies to how many decimals the resulting "string" should be rounded.
+
+    ```C
+    // ...
+
+    double my_dou = 3.14159265359;
+    char* my_str = dtos(my_dou, 10);
+
+    printf("String: %s\n", my_str);
+
+    // ...
+    ```
+
+    ![exa30_output](media/30.JPG)
+
+#### Convert from string
+
+The following are all functions to convert a _string_ to several, different datatypes.
+  * ##### String to integer
+    To convert a _string_ to an integer, use the `stoi((char*) str)` function.
+
+    ```C
+    // ...
+
+    char* my_str = "1024";
+    int my_int = stoi(my_str);
+
+    printf("Integer: %d\n", my_int);
+
+    // ...
+    ```
+
+    ![exa31_output](media/31.JPG)
+
+  * ##### String to boolean value
+    To convert a _string_ to a boolean value, you should use the `stob((char*) str)` function.
+
+    ```C
+    // ...
+
+    char* my_str = "true";
+    int my_boo = stob(my_str);
+
+    printf("Boolean: %d\n", my_boo);
+
+    // ...
+    ```
+
+    ![exa32_output](media/32.JPG)
+
+  * ##### String to long
+    To convert a _string_ to a long, you can use the `stol((char*) str)` function.
+
+    ```C
+    // ...
+
+    char* my_str = "8000000";
+    long my_lon = stol(my_str);
+
+    printf("Long: %ld\n", my_lon);
+
+    // ...
+    ```
+
+    ![exa33_output](media/33.JPG)
+
+  * ##### String to float
+    To convert a _string_ to a float, use the `stof((char*) str)` function.
+
+    ```C
+    // ...
+
+    char* my_str = "3.141";
+    float my_flo = stof(my_str);
+
+    printf("Float: %f\n", my_flo);
+
+    // ...
+    ```
+
+    ![exa34_output](media/34.JPG)
+
+  * ##### String to double
+    To convert a _string_ to a double, you can use the `stod((char*) str)` function.
+
+    ```C
+    // ...
+
+    char* my_str = "3.14159265359";
+    double my_dou = stod(my_str);
+
+    printf("Double: %.15lf\n", my_dou);
+
+    // ...
+    ```
+
+    ![exa35_output](media/35.JPG)
 
 ## Conclusion
 

main.c

@@ -4,7 +4,7 @@
 
 int main()
 {
-    /*char* msg = newstr("Hello World!");
+    char* msg = newstr("Hello World!");
     char* cpy = strcpy(msg);
 
     cpy[0] = 'A';
@@ -100,12 +100,7 @@ int main()
     printf("->stof:\t%f\n", stof("8.5096"));
     printf("->stod:\t%.10lf\n", stod("8.0123456789"));
 
-    printf("\n");*/
-
-    char* msg = newstr("      \n\rHello World!\n     ");
-    char* trimmed = trim(msg);
-
-    printf("Trimmed: %s\n", trimmed);
+    printf("\n");
 
     char c;
     scanf("%c", &c);

propaganda.c

@@ -612,8 +612,6 @@ char* ftos(float n, int l) {
     for (int i = 0; i < l-1; i++) {
         n *= 10;
         res_s = strcat(res_s, itos((int) n));
-        printf("%f\n", n);
-        printf("%s\n", res_s);
         n -= (int) n;
     }
 
@@ -721,8 +719,9 @@ float stof(char* str) {
     float res = (float) stoi(substring(str, 0, indexOf(str, '.')));
 
     char* after_c = substr(str, indexOf(str, '.')+1);
-    float af_c = (float) stoi(after_c);
-    res += af_c * (float) pow(10, -strlen(after_c));
+    for (int i = 0; i < strlen(after_c); i++) {
+        res += ctoi(after_c[i]) * (float) pow(10, -i-1);
+    }
 
     return res;
 }
@@ -736,13 +735,14 @@ float stof(char* str) {
 
 double stod(char* str) {
     if (indexOf(str, '.') < 0)
-        return 0.0f;
+        return 0.0;
 
     double res = (double) stoi(substring(str, 0, indexOf(str, '.')));
 
     char* after_c = substr(str, indexOf(str, '.')+1);
-    double af_c = (double) stoi(after_c);
-    res += af_c * pow(10, -strlen(after_c));
+    for (int i = 0; i < strlen(after_c); i++) {
+        res += ctoi(after_c[i]) * pow(10, -i-1);
+    }
 
     return res;
 }