21st Century C: C Tips from the New School (2nd Edition) - download pdf or read online

By Ben Klemens

ISBN-10: 1491903880

ISBN-13: 9781491903889

Throw out your outdated principles approximately C and get to understand a programming language that’s considerably outgrown its origins. With this revised variation of twenty first Century C, you’ll become aware of up to date ideas lacking from different C tutorials, even if you’re new to the language or simply getting reacquainted.

C isn’t simply the root of recent programming languages; it's a glossy language, excellent for writing effective, cutting-edge purposes. Get previous idioms that made feel on mainframes and examine the instruments you want to paintings with this developed and aggressively basic language. it doesn't matter what programming language you presently want, you’ll fast see that twenty first century C rocks.

* manage a C programming atmosphere with shell amenities, makefiles, textual content editors, debuggers, and reminiscence checkers
* Use Autotools, C’s de facto cross-platform package deal manager
* know about the tricky C techniques too valuable to discard
* clear up C’s string-building issues of C-standard functions
* Use sleek syntactic gains for services that take based inputs
* construct high-level, object-based libraries and programs
* practice complicated math, check with net servers, and run databases with current C libraries

This version additionally contains new fabric on concurrent threads, digital tables, C99 numeric varieties, and different positive factors.

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Extra resources for 21st Century C: C Tips from the New School (2nd Edition)

Sample text

This is good user interface design by the GLib team, because those of us who don’t want to spend time picking just the right subsections of the library can speed through the header paperwork in one line, and those who want detailed control can pick and 26 | Chapter 1: Set Yourself Up for Easy Compilation choose exactly the headers they need. It would be nice if the C standard library had a quick-and-easy header like this; it wasn’t the custom in the 1980s, but it’s easy to make one. h> I can’t tell you exactly what it’ll look like, because I don’t know exactly what you use day to day.

Using a Debugger The first tip about the debugger is simple and brief: Use a debugger, always. Some of you will find this to be not much of a tip, because who possibly wouldn’t use a debugger? Here in the second edition of the book, I can tell you that one of the most 31 common requests regarding the first edition was a more extensive introduction to the debugger, which was entirely new to many readers. Some people worry that bugs typically come from broad errors of understanding, while the debugger only gives information at the low level of variable states and back‐ traces.

Set CFLAGS="-g -Wall -O3” to set the value of CFLAGS. But the POSIX standard is written around the Bourne-type variable-setting syntax, so that is what I focus on through the rest of this book. The shell and make use the $ to indicate the value of a variable, but the shell uses $var, whereas make wants any variable names longer than one character in parens: $(var). So, given the preceding makefile, $(P): $(OBJECTS) will be evaluated to mean program_name: There are several ways to tell make about a variable: • Set the variable from the shell before calling make, and export the variable, mean‐ ing that when the shell spawns a child process, it has the variable in its list of environment variables.

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21st Century C: C Tips from the New School (2nd Edition) by Ben Klemens


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