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The GNU C Library.pdf 最新版

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The GNU C Library pdf 最新版 GNU C库，里面有详细的GNU C库函数介绍，可以作为学习或者开发的手册使用。

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The GNU C Library

（

Version 2, June 1991

）

Made by Ken.Hsiung from HZNU, China

The GNU C Library

• Introduction

o Getting Started

o Standards and Portability

 ANSI C

 POSIX (The Portable Operating System Interface)

 Berkeley Unix

 SVID (The System V Interface Description)

o Using the Library

 Header Files

 Macro Definitions of Functions

 Reserved Names

 Feature Test Macros

o Roadmap to the Manual

• Error Reporting

o Checking for Errors

o Error Codes

o Error Messages

• Memory Allocation

o Dynamic Memory Allocation Concepts

o Dynamic Allocation and C

o Unconstrained Allocation

 Basic Storage Allocation

 Examples of malloc

 Freeing Memory Allocated with malloc

 Changing the Size of a Block

 Allocating Cleared Space

 Efficiency Considerations for malloc

 Allocating Aligned Memory Blocks

 Heap Consistency Checking

 Storage Allocation Hooks

 Statistics for Storage Allocation with malloc

 Summary of malloc-Related Functions

o Obstacks

 Creating Obstacks

 Preparing for Using Obstacks

 Allocation in an Obstack

 Freeing Objects in an Obstack

 Obstack Functions and Macros

 Growing Objects

 Extra Fast Growing Objects

 Status of an Obstack

 Alignment of Data in Obstacks

 Obstack Chunks

 Summary of Obstack Functions

o Automatic Storage with Variable Size

 alloca Example

 Advantages of alloca

 Disadvantages of alloca

 GNU C Variable-Size Arrays

o Relocating Allocator

 Concepts of Relocating Allocation

 Allocating and Freeing Relocatable Blocks

o Memory Usage Warnings

• Character Handling

o Classification of Characters

o Case Conversion

• String and Array Utilities

o Representation of Strings

o String/Array Conventions

o String Length

o Copying and Concatenation

o String/Array Comparison

o Collation Functions

o Search Functions

o Finding Tokens in a String

• Extended Characters

o Introduction to Extended Characters

o Locales and Extended Characters

o Multibyte Characters

o Wide Character Introduction

o Conversion of Extended Strings

o Multibyte Character Length

o Conversion of Extended Characters One by One

o Example of Character-by-Character Conversion

o Multibyte Codes Using Shift Sequences

• Locales and Internationalization

o What Effects a Locale Has

o Choosing a Locale

o Categories of Activities that Locales Affect

o How Programs Set the Locale

o Standard Locales

o Numeric Formatting

 Generic Numeric Formatting Parameters

 Printing the Currency Symbol

 Printing the Sign of an Amount of Money

• Searching and Sorting

o Defining the Comparison Function

o Array Search Function

o Array Sort Function

o Searching and Sorting Example

• Pattern Matching

o Wildcard Matching

o Globbing

 Calling glob

 Flags for Globbing

o Regular Expression Matching

 POSIX Regular Expression Compilation

 Flags for POSIX Regular Expressions

 Matching a Compiled POSIX Regular Expression

 Subexpressions Match Results

 Complications in Subexpression Matching

 POSIX Regexp Matching Cleanup

o Shell-Style Word Expansion

 The Stages of Word Expansion

 Calling wordexp

 Flags for Word Expansion

 wordexp Example

• Input/Output Overview

o Input/Output Concepts

 Streams and File Descriptors

 File Position

o File Names

 Directories

 File Name Resolution

 File Name Errors

 Portability of File Names

• Input/Output on Streams

o Streams

o Standard Streams

o Opening Streams

o Closing Streams

o Simple Output by Characters or Lines

o Character Input

o Line-Oriented Input

o Unreading

 What Unreading Means

 Using ungetc To Do Unreading

o Formatted Output

 Formatted Output Basics

 Output Conversion Syntax

 Table of Output Conversions

 Integer Conversions

 Floating-Point Conversions

 Other Output Conversions

 Formatted Output Functions

 Dynamically Allocating Formatted Output

 Variable Arguments Output Functions

 Parsing a Template String

 Example of Parsing a Template String

o Customizing printf

 Registering New Conversions

 Conversion Specifier Options

 Defining the Output Handler

 printf Extension Example

o Formatted Input

 Formatted Input Basics

 Input Conversion Syntax

 Table of Input Conversions

 Numeric Input Conversions

 String Input Conversions

 Dynamically Allocating String Conversions

 Other Input Conversions

 Formatted Input Functions

 Variable Arguments Input Functions

o Block Input/Output

o End-Of-File and Errors

o Text and Binary Streams

o File Positioning

o Portable File-Position Functions

o Stream Buffering

 Buffering Concepts

 Flushing Buffers

 Controlling Which Kind of Buffering

o Temporary Files

o Other Kinds of Streams

 String Streams

 Obstack Streams

 Programming Your Own Custom Streams

 Custom Streams and Cookies

 Custom Stream Hook Functions

• Low-Level Input/Output

o Opening and Closing Files

o Input and Output Primitives

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ln -s /usr/lib/aarch64-linux-gnu/libodbcinst.so.2.0.0 /usr/lib/aarch64-linux-gnu/libodbcinst.so

这段代码是在Linux系统上创建一个符号链接（symbolic link），将 `/usr/lib/aarch64-linux-gnu/libodbcinst.so.2.0.0` 链接到 `/usr/lib/aarch64-linux-gnu/libodbcinst.so`。具体含义如下： `ln -s`：是创建符号...

Could not initialize class gnu.io.CommPortIdentifier

Sometimes, different versions of the library can cause conflicts, resulting in the "Could not initialize class gnu.io.CommPortIdentifier" error. 3. Ensure that the necessary permissions are granted ...

minicom: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /lib/x86_64-linux-gnu/libtinfo.so.6)

在32位的Ubuntu Linux中，该文件的路径是/lib/i386-linux-gnu/libc.so.6，在64位的Ubuntu Linux中，该文件的路径是/lib/x86_64-linux-gnu/libc.so.6。因此，如果你在安装Code Sourcery之前遇到了"/lib/x86_64-linux-...

sudo ln -s /usr/lib/x86_64-linux-gnu/libmpfr.so.6 /usr/lib/x86_64-linux-gnu/libmpfr.so.4

在给定的命令中，"sudo ln -s /usr/lib/x86_64-linux-gnu/libmpfr.so.6 /usr/lib/x86_64-linux-gnu/libmpfr.so.4" 是用于创建一个软链接的命令。软链接是一个指向另一个文件或目录的引用，类似于快捷方式。在这个...

no rxtxserial in java.library.path

java -Djava.library.path=C:\rxtxserial\lib MyProgram 4. 确保程序中正确引用了rxtxserial库，例如： import gnu.io.*; ... SerialPort serialPort = (SerialPort) portIdentifier.open("MyProgram", 2000...

ls: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /lib/x86_64-linux-gnu/libselinux.so.1

GLIBC 是 GNU C 库的缩写，它是 Linux 系统中的一个重要的 C 库。GLIBC 包含了许多系统函数的实现，其他库和应用程序都依赖于它。在你的系统中，/lib/x86_64-linux-gnu/libc.so.6 是 C 库的动态链接库文件，而 /...

ERROR: Error building `RCall`: ERROR: could not load library "/usr/lib/R/lib/libR.so" /home/shaoyanjia/julia/julia-1.8.2/bin/../lib/julia/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /lib/x86_64-linux-gnu/libicuuc.so.70) ERROR: LoadError: Try adding /usr/lib/R/lib to the "LD_LIBRARY_PATH" environmental variable and restarting Julia.还是报错，如何解决

If adding the R library directory to the "LD_LIBRARY_PATH" environmental variable did not resolve the issue, you can try installing a newer version of libstdc++.so.6 that includes the required `...

Could not initialize class gnu.io.RXTXVersion

import gnu.io.CommPortIdentifier; public class RXTXTest { public static void main(String[] args) { CommPortIdentifier portIdentifier = null; try { portIdentifier = CommPortIdentifier....

ImportError: /lib/x86_64-linux-gnu/libffi.so.8: version `LIBFFI_CLOSURE_8.0' not found

这个错误通常是由于libffi版本不一致导致的。...sudo ln -s /usr/lib/x86_64-linux-gnu/libffi.so.8 /usr/lib/x86_64-linux-gnu/libffi.so.7 ``` 请注意，这种方法可能会导致其他问题，因此请谨慎使用。

[root@192 samtools-1.17]# ./configure checking for gawk... gawk checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for grep that handles long lines and -e... /usr/bin/grep checking for C compiler warning flags... -Wall checking for special C compiler options needed for large files... no checking for _FILE_OFFSET_BITS value needed for large files... no checking location of HTSlib source tree... htslib-1.17 checking for NcursesW wide-character library... yes checking for working ncursesw/curses.h... yes checking for library containing cbreak... none required checking for zlib.h... no checking for inflate in -lz... no configure: error: zlib development files not found

根据你提供的信息，编译 `samtools-1.17` 时出现了错误。错误信息显示缺少 zlib 的开发文件。在 CentOS 7 上安装 zlib 的开发文件，可以使用以下命令： ``` sudo yum install zlib-devel ``` ...

When I use updated Matlab2017b, I met:Can't load '/usr/local/MATLAB/R2017b/bin/glnxa64/libmwdastudio.so': /lib/x86_64-linux-gnu/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var. How to solve the problem

"Can't load '/usr/local/MATLAB/R2017b/bin/glnxa64/libmwdastudio.so': /lib/x86_64-linux-gnu/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var," suggests a problem with the fontconfig library used ...

/lib/x86_64-linux-gnu/libc.so.6

/lib/x86_64-linux-gnu/libc.so.6是Linux操作系统中的动态链接库，全称为C标准库。在Linux系统中，所有使用C语言编写的程序都需要使用C标准库提供的函数、变量和常量。C标准库的主要功能包括文件操作、字符串操作、...

libtool: link: warning: library `/usr/lib/x86_64-linux-gnu/libodbcinst.la' was moved. 怎么解决

这个警告信息表明 libtool 链接器在链接时找不到 `/usr/lib/x86_64-linux-gnu/libodbcinst.la' 库... gcc -o myprogram myprogram.c /usr/lib/x86_64-linux-gnu/libodbcinst.so ``` 希望以上方法能够帮助您解决问题。

libtool: link: warning: library `/usr/lib/x86_64-linux-gnu/libodbcinst.la' was moved

这个警告信息表示在链接时，libtool 找不到 `/usr/lib/x86_64-linux-gnu/libodbcinst.la` 库文件... gcc -o myprogram myprogram.c /usr/lib/x86_64-linux-gnu/libodbcinst.so ``` 希望以上方法能够帮助您解决问题。

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The GNU C Library Reference Manual

The GNU C Library

GNU C library reference

The.GNU.C.Library.pdf

The GNU C Library Reference Manual.pdf

gnu_libc.pdf

ln -s /usr/lib/aarch64-linux-gnu/libodbcinst.so.2.0.0 /usr/lib/aarch64-linux-gnu/libodbcinst.so

Could not initialize class gnu.io.CommPortIdentifier

minicom: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /lib/x86_64-linux-gnu/libtinfo.so.6)

sudo ln -s /usr/lib/x86_64-linux-gnu/libmpfr.so.6 /usr/lib/x86_64-linux-gnu/libmpfr.so.4

no rxtxserial in java.library.path

ls: /lib/x86_64-linux-gnu/libc.so.6: version `GLIBC_2.33' not found (required by /lib/x86_64-linux-gnu/libselinux.so.1

Could not initialize class gnu.io.RXTXVersion

ImportError: /lib/x86_64-linux-gnu/libffi.so.8: version `LIBFFI_CLOSURE_8.0' not found

When I use updated Matlab2017b, I met:Can't load '/usr/local/MATLAB/R2017b/bin/glnxa64/libmwdastudio.so': /lib/x86_64-linux-gnu/libfontconfig.so.1: undefined symbol: FT_Done_MM_Var. How to solve the problem

/lib/x86_64-linux-gnu/libc.so.6

libtool: link: warning: library `/usr/lib/x86_64-linux-gnu/libodbcinst.la' was moved. 怎么解决

libtool: link: warning: library `/usr/lib/x86_64-linux-gnu/libodbcinst.la' was moved

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