CTAOS v5

SysCore/include/stdlib.h

@@ -0,0 +1,93 @@
+#ifndef __STDLIB_H__
+#define __STDLIB_H__
+
+/** Returns the absolute value of an integer.*/
+#define abs(x) (x>0) ? (x) : (x*-1)
+/** Returns the absolute value of a long variable.*/
+#define labs(x) (x>0) ? (x) : (x*-1)
+/** Returns the maximum of two numbers.*/
+#define max(a, b) (a > b) ? a : b
+/** Returns the minimum of two numbers.*/
+#define min(a, b) (a < b) ? a : b
+#define NULL 0
+
+/** div_t is a structure of integers used by div()\n
+ Notes:\n
+ - quot = quotient;\n
+ - rem  = remainder;\n */
+typedef struct {
+    /** Quotient */
+    long quot;
+    /** Remainder */
+    long rem;
+} div_t;
+
+/** ldiv_t is a structure of integers used by ldiv()\n
+ Notes:\n
+ - quot = quotient;\n
+ - rem  = remainder;\n */
+typedef struct {
+    /** Quotient*/
+    long quot;
+    /** Remainder*/
+    long rem;
+} ldiv_t;
+
+
+// TODO: extern long double _atold (const char* string);
+// TODO: extern double atof (const char* string);      // TODO: initialize FPU
+
+/** Convert ASCII string to INT */
+extern int      atoi    (const char* string);
+
+/** Convert ASCII string to LONG */
+extern long     atol    (const char* string);
+
+/** Convert ASCII string in hexadecimal to unsigned integer.*/
+extern unsigned int atox (const char* string);
+
+/** Peform a binary search\n
+ Notes:\n
+ - const void*  key     =   A pointer to the element to look for\n
+ - const void*  base    =   A pointer to the first element of the table\n
+ - unsigned     nelem   =   The number of elements in the table\n
+ - unsigned     width   =   The size of one element of the table\n
+ - int          *fcmp   =   A user defined comparison routine\n */
+extern void*    bsearch (const void* key, const void* base, unsigned nelem, unsigned width, int (*fcmp)(const void*, const void*));
+
+/**Divides two integers and returns both the quotient and the remainder as a div_t structure.*/
+extern div_t    div     (int numerator, int denominator);
+
+/** Convert SIGNED INT to ASCII string */
+extern void     itoa    (signed int value, char *string, int radix);
+
+/**Divides two longs and returns both the quotient and the remainder as a ldiv_t structure.*/
+extern ldiv_t   ldiv    (long numerator, long denominator);
+
+/**Does a linear search for *key in a table\n
+ Notes:\n
+ - const void*  key     =   A pointer to the element to look for\n
+ - const void*  base    =   A pointer to the first element of the table\n
+ - unsigned     nelem   =   The number of elements in the table\n
+ - unsigned     width   =   The size of one element of the table\n
+ - int          *fcmp   =   A user defined comparison routine\n */
+void* lfind (const void* key, const void* base, unsigned nelem, unsigned width, int (*fcmp)(const void*, const void*));
+
+/** Convert SIGNED LONG to ASCII string */
+extern void     ltoa    (signed long value, char *string, int radix);
+
+/** Sorts an array using an optimized quick sort algorithm.\n
+ Notes:\n
+ - void         base    =   A pointer to the first element of the table\n
+ - unsigned     *nelem   =   The number of elements in the table\n
+ - unsigned     width   =   The size of one element of the table\n
+ - int          *fcmp   =   A user defined comparison routine\n */
+void qsort (void* base, unsigned nelem, unsigned width, int (*fcmp)(const void*, const void*));
+
+/** Convert UNSIGNED INT to ASCII string */
+extern void     uitoa   (unsigned int value, char *string, int radix);
+
+/** Convert UNSIGNED LONG to ASCII string */
+extern void     ultoa   (unsigned long value, char *string, int radix);
+
+#endif