CMPT 127 Lecture Notes - Lecture 28: Include Directive, Increment And Decrement Operators, Null Pointer
14 Sep 2017
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After this lab you will be able to: use an explicit memory allocation strategy for high performance, measure runtime performance with gettimeofday(, use gnuplot to plot performance as a function of input size. In the terminal: add the new directory "8" to the root directory of your repository and make it your current working directory, fetch the new material for lab 8: $ wget http://www. cs. sfu. ca/~vaughan/127/lab8. tgz: expand the archive into the your working directory. The supplied header file point_array. h defines the following structures to represent points in. 3d space, and an array to contain them, similar to examples you have seen before: typedef struct point double x, y, z; // location in 3d space. } point_t; typedef struct size_t len; // number of points in the array point_t* points; // an array of len point_t structs. It also declares four functions for manipulating point_array_t arrays. Each takes a pointer to an array structure as their first argument.
