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How can I make a floating point comparison function for use with qsort?

April 26, 2017comparison floating function point qsort

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How can I make a floating point comparison function for use with qsort?

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Q: How I can define a comparison function for sorting an array of floats using qsort function: A: Here is a simple example (called “Sort Floats”): // Sort a list of floating point values #define USE_TI89 // Compile for TI-89 #define USE_TI92PLUS // Compile for TI-92 Plus #define USE_V200 // Compile for V200 #define MIN_AMS 100 // Compile for AMS 1.00 or higher #define SAVE_SCREEN // Save/Restore LCD Contents #include // Include All Header Files // Comparison Function CALLBACK short flt_comp(const void *a, const void *b) { return fcmp (*(const float*)a, *(const float*)b); } // Main Function void _main(void) { float list[5] = {2.5, 3.18, 1.42, 4.0, 3.25}; int i; clrscr (); qsort (list, 5, sizeof (float), flt_comp); for (i = 0; i < 5; i++) printf ("%f\n", list[i]); ngetchx (); }