src/cx/compare.h

changeset 1062
8baed9b38bc6
parent 985
68754c7de906
--- a/src/cx/compare.h	Sat Dec 28 15:06:15 2024 +0100
+++ b/src/cx/compare.h	Sat Dec 28 17:31:28 2024 +0100
@@ -43,7 +43,16 @@
 #endif
 
 /**
- * A comparator function comparing two collection elements.
+ * A comparator function comparing two arbitrary values.
+ *
+ * All functions from compare.h with the cx_cmp prefix are
+ * compatible with this signature and can be used as
+ * compare function for collections, or other implementations
+ * that need to be type-agnostic.
+ *
+ * For simple comparisons the cx_vcmp family of functions
+ * can be used, but they are NOT compatible with this function
+ * pointer.
  */
 cx_attr_nonnull
 cx_attr_nodiscard
@@ -65,6 +74,17 @@
 int cx_cmp_int(const void *i1, const void *i2);
 
 /**
+ * Compares two ints.
+ *
+ * @param i1 integer one
+ * @param i2 integer two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_int(int i1, int i2);
+
+/**
  * Compares two integers of type long int.
  *
  * @param i1 pointer to long integer one
@@ -77,6 +97,17 @@
 int cx_cmp_longint(const void *i1, const void *i2);
 
 /**
+ * Compares two long ints.
+ *
+ * @param i1 long integer one
+ * @param i2 long integer two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_longint(long int i1, long int i2);
+
+/**
  * Compares two integers of type long long.
  *
  * @param i1 pointer to long long one
@@ -89,6 +120,17 @@
 int cx_cmp_longlong(const void *i1, const void *i2);
 
 /**
+ * Compares twolong long ints.
+ *
+ * @param i1 long long int one
+ * @param i2 long long int two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_longlong(long long int i1, long long int i2);
+
+/**
  * Compares two integers of type int16_t.
  *
  * @param i1 pointer to int16_t one
@@ -101,6 +143,17 @@
 int cx_cmp_int16(const void *i1, const void *i2);
 
 /**
+ * Compares two integers of type int16_t.
+ *
+ * @param i1 int16_t one
+ * @param i2 int16_t two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_int16(int16_t i1, int16_t i2);
+
+/**
  * Compares two integers of type int32_t.
  *
  * @param i1 pointer to int32_t one
@@ -113,6 +166,17 @@
 int cx_cmp_int32(const void *i1, const void *i2);
 
 /**
+ * Compares two integers of type int32_t.
+ *
+ * @param i1 int32_t one
+ * @param i2 int32_t two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_int32(int32_t i1, int32_t i2);
+
+/**
  * Compares two integers of type int64_t.
  *
  * @param i1 pointer to int64_t one
@@ -125,6 +189,17 @@
 int cx_cmp_int64(const void *i1, const void *i2);
 
 /**
+ * Compares two integers of type int64_t.
+ *
+ * @param i1 int64_t one
+ * @param i2 int64_t two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_int64(int64_t i1, int64_t i2);
+
+/**
  * Compares two integers of type unsigned int.
  *
  * @param i1 pointer to unsigned integer one
@@ -137,6 +212,17 @@
 int cx_cmp_uint(const void *i1, const void *i2);
 
 /**
+ * Compares two unsigned ints.
+ *
+ * @param i1 unsigned integer one
+ * @param i2 unsigned integer two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_uint(unsigned int i1, unsigned int i2);
+
+/**
  * Compares two integers of type unsigned long int.
  *
  * @param i1 pointer to unsigned long integer one
@@ -149,6 +235,17 @@
 int cx_cmp_ulongint(const void *i1, const void *i2);
 
 /**
+ * Compares two unsigned long ints.
+ *
+ * @param i1 unsigned long integer one
+ * @param i2 unsigned long integer two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_ulongint(unsigned long int i1, unsigned long int i2);
+
+/**
  * Compares two integers of type unsigned long long.
  *
  * @param i1 pointer to unsigned long long one
@@ -161,6 +258,17 @@
 int cx_cmp_ulonglong(const void *i1, const void *i2);
 
 /**
+ * Compares two unsigned long long ints.
+ *
+ * @param i1 unsigned long long one
+ * @param i2 unsigned long long two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_ulonglong(unsigned long long int i1, unsigned long long int i2);
+
+/**
  * Compares two integers of type uint16_t.
  *
  * @param i1 pointer to uint16_t one
@@ -173,6 +281,17 @@
 int cx_cmp_uint16(const void *i1, const void *i2);
 
 /**
+ * Compares two integers of type uint16_t.
+ *
+ * @param i1 uint16_t one
+ * @param i2 uint16_t two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_uint16(uint16_t i1, uint16_t i2);
+
+/**
  * Compares two integers of type uint32_t.
  *
  * @param i1 pointer to uint32_t one
@@ -185,6 +304,17 @@
 int cx_cmp_uint32(const void *i1, const void *i2);
 
 /**
+ * Compares two integers of type uint32_t.
+ *
+ * @param i1 uint32_t one
+ * @param i2 uint32_t two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_uint32(uint32_t i1, uint32_t i2);
+
+/**
  * Compares two integers of type uint64_t.
  *
  * @param i1 pointer to uint64_t one
@@ -197,6 +327,17 @@
 int cx_cmp_uint64(const void *i1, const void *i2);
 
 /**
+ * Compares two integers of type uint64_t.
+ *
+ * @param i1 uint64_t one
+ * @param i2 uint64_t two
+ * @return -1, if i1 is less than i2, 0 if both are equal,
+ * 1 if i1 is greater than i2
+ */
+cx_attr_nodiscard
+int cx_vcmp_uint64(uint64_t i1, uint64_t i2);
+
+/**
  * Compares two real numbers of type float with precision 1e-6f.
  *
  * @param f1 pointer to float one
@@ -209,6 +350,17 @@
 int cx_cmp_float(const void *f1, const void *f2);
 
 /**
+ * Compares two real numbers of type float with precision 1e-6f.
+ *
+ * @param f1 float one
+ * @param f2 float two
+ * @return -1, if f1 is less than f2, 0 if both are equal,
+ * 1 if f1 is greater than f2
+ */
+cx_attr_nodiscard
+int cx_vcmp_float(float f1, float f2);
+
+/**
  * Compares two real numbers of type double with precision 1e-14.
  *
  * @param d1 pointer to double one
@@ -221,6 +373,17 @@
 int cx_cmp_double(const void *d1, const void *d2);
 
 /**
+ * Convenience function
+ *
+ * @param d1 double one
+ * @param d2 double two
+ * @return -1, if d1 is less than d2, 0 if both are equal,
+ * 1 if d1 is greater than d2
+ */
+cx_attr_nodiscard
+int cx_vcmp_double(double d1, double d2);
+
+/**
  * Compares the integer representation of two pointers.
  *
  * @param ptr1 pointer to pointer one (const intptr_t*)
@@ -233,6 +396,17 @@
 int cx_cmp_intptr(const void *ptr1, const void *ptr2);
 
 /**
+ * Compares the integer representation of two pointers.
+ *
+ * @param ptr1 pointer one
+ * @param ptr2 pointer two
+ * @return -1 if ptr1 is less than ptr2, 0 if both are equal,
+ * 1 if ptr1 is greater than ptr2
+ */
+cx_attr_nodiscard
+int cx_vcmp_intptr(intptr_t ptr1, intptr_t ptr2);
+
+/**
  * Compares the unsigned integer representation of two pointers.
  *
  * @param ptr1 pointer to pointer one (const uintptr_t*)
@@ -245,6 +419,17 @@
 int cx_cmp_uintptr(const void *ptr1, const void *ptr2);
 
 /**
+ * Compares the unsigned integer representation of two pointers.
+ *
+ * @param ptr1 pointer one
+ * @param ptr2 pointer two
+ * @return -1 if ptr1 is less than ptr2, 0 if both are equal,
+ * 1 if ptr1 is greater than ptr2
+ */
+cx_attr_nodiscard
+int cx_vcmp_uintptr(uintptr_t ptr1, uintptr_t ptr2);
+
+/**
  * Compares the pointers specified in the arguments without de-referencing.
  *
  * @param ptr1 pointer one

mercurial