Programming - Software Engineering The Practice of Programming phần 7 pptx

... directly from the machine - readable text. More information is avail - able at the web site for The Practice of Programming: The majority of the programs are in C, with a number of examples ... sight of the basic principles - simplicity, clarity, generality - that form the bedrock of good software. One can also overlook the value of tools and n...

Ngày tải lên: 13/08/2014, 08:20

... program: 24, the number of rows on the screen; 80, the number of columns; and 26, the number of letters in the alphabet. But none of these appears in the code, which makes the num - bers that do even ... NELEMS(htm1chars)) ; to find the array index of the character %. Binary search eliminates half the data at each step. The number of steps is there...

Ngày tải lên: 13/08/2014, 08:20

... byte of the string to a multiple of the hash so far. The multiplication spreads bits from the new byte through the value so far; at the end of the loop, the result should be a thorough mixing of ... The larger the size, the shorter the expected length of the chains and thus the faster the lookup. This program is really a toy, so the per - form...

Ngày tải lên: 13/08/2014, 08:20

... advquoted. The new version of advquoted uses the C++ standard function find - fi rst - of to locate the next occurrence of a separator character. The call s . f i nd-f i rst - of (f ... version of the CSV library to address some of the remaining limitations of the C version. This will entail some changes to the speci - fication, of...

Ngày tải lên: 13/08/2014, 08:20

... ensuring the integrity of a software design - program proofs, modeling, requirements analysis, formal verification - but none of these has yet changed the way software is built; they have ... of their most common uses is to examine the state of a program after death. The source line num - ber of the failure, often part of a stack trace, is the most...

Ngày tải lên: 13/08/2014, 08:20

... manner of tests of pattern - matching and tok - enization. (The test directory was of course created by a program.) For years after - wards, that directory was the bane of file - tree - walking ... of the lessons of this chapter to test - ing this program? The first set of tests consists of a handful of tiny files that check boundary condi...

Ngày tải lên: 13/08/2014, 08:20

... Knuth's profiling paper, " An Empirical Study of FORTRAN Programs, " appeared in Software - Practice and Experience, 1, 2, pp. 105 - 133, 1 97 1. The core of the paper is ... better than others. The following graph shows the effect of the size of the hash table array on run - time for the C version of markov with Psalms as inpu...

Ngày tải lên: 13/08/2014, 08:20

... three bytes. The word garcon appears in UTF - 8 as the bytes 67 61 72 C3 A7 6F 6E; Unicode value E7, the c character. is represented as the two bytes C3 A7 in UTF - 8. The backwards ... represented in Latin-l by the bytes 67 61 72 E7 6F 6E. Other lan - guages define other symbols, but they can't all fit in the 128 values left unused by ASCI...

Ngày tải lên: 13/08/2014, 08:20

... utterance in the language. Furthermore, the right implemen - tation can run very fast; a combination of theory and engineering practice makes a lot of difference, an example of the benefit of specialized ... charac - ter of the text from left to right, it should skip over the longest string that matches the starred operand, then back up if the rest of...

Ngày tải lên: 13/08/2014, 08:20

... 133 pri ntf - like notation, 87. 99.2 17 printnv list function. 47 production code. 83.99 profile Awk, 174 spam filter, 173 - 174 profiling. 1 67, 172 - 174 progname function, 110 program ... library, 34 - 37 sort function, C++, 37 sorting strings. 35 source code control, 12 1, 1 27 space efficiency. 182 - 184 spam filter, 16 6-1 70 data struct...

Ngày tải lên: 13/08/2014, 08:20