Matabeleland area has important gold deposits. Industries include gold and other mineral mines, and engineering. There has been a decline in the industries in this region as water is in short supply. Promises by the government to draw water for the region through the Matabeleland Zambezi Water Project have not been carried out. The region is allegedly marginalised by the government. Around the 10th and 11th centuries the Bantu-speaking Bakalanga arrived from the south and settled in Mapungubwe on the Limpopo and Shashi river valleys. Later they moved north to Great Zimbabwe. By the 15th century, the Bakalanga had established a
Use-define chain variable and all the uses, U, reachable from that definition without any other intervening definitions. Both UD and DU chains are created by using a form of static code analysis known as data flow analysis. Knowing the use-def and def-use chains for a program or subprogram is a prerequisite for many compiler optimizations, including constant propagation and common subexpression elimination. Making the use-define or define-use chains is a step in liveness analysis, so that logical representations of all the variables can be identified and tracked through the code. Consider the following snippet of code: Notice that codice_1 is assigned a