Null-terminated byte strings

 

C++

语言

概念

实用工具库

字符串库

集装箱库

算法库

迭代器库

Numerics库

输入/输出库

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正则表达式库 （C++11）

原子操作库 （C++11）

线程的支持库 （C++11）

 

字符串库

null结尾的字符串 Original: Null-terminated strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

字节的字符串

多字节字符串

宽字符串

类 Original: Classes The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

basic_string

char_traits

 

NULL结尾的字节串

功能 Original: Functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
字符操作 Original: Character manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
isalnum isalpha islower isupper isdigit isxdigit isblank （C++11）	iscntrl isgraph isspace isprint ispunct tolower toupper
转换为数字格式 Original: Conversions to numeric formats The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
atof atoi atol atoll strtol strtoll	strtoul strtoull strtof strtod strtold
字符串操作 Original: String manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strcpy
strncpy
strcat
strncat
strxfrm
字符串检查 Original: String examination The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strlen strcmp strncmp strcoll strchr strrchr	strspn strcspn strpbrk strstr strtok
内存操作 Original: Memory manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
memchr
memcmp
memset
memcpy
memmove
杂项 Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
strerror

 

以null结尾的字节串（非关税壁垒）是一个序列的非零字节一个字节的值为零（终止空字符）。一个字节的字符串中的每个字节一个字符，一些字符集编码。例如，字符数组{'\x63','\x61','\x74','\0'是ASCII编码的字符串"cat"的非关税壁垒.

Original:

A null-terminated byte string (NTBS) is a sequence of nonzero bytes followed by a byte with value zero (the terminating null character). Each byte in a byte string encodes one character of some character set. For example, the character array {'\x63','\x61','\x74','\0'} is an NTBS holding the string "cat" in ASCII encoding.

The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

功能

字符分类 Original: Character classification The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cctype>
isalnum	检查如果一个字符是字母数字 Original: checks if a character is alphanumeric The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isalpha	检查，如果一个字符是字母 Original: checks if a character is alphabetic The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
islower	检查，如果一个字符是小写的 Original: checks if a character is lowercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isupper	检查，如果字符是一个大写字符 Original: checks if a character is an uppercase character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isdigit	检查，如果字符是一个数字 Original: checks if a character is a digit The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isxdigit	检查，如果一个字符是十六进制的字符 Original: checks if a character is a hexadecimal character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
iscntrl	一个字符的检查，如果是一个控制字符 Original: checks if a character is a control character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isgraph	一个字符的检查，如果是一个图形字符 Original: checks if a character is a graphical character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isspace	检查，如果字符是一个空格字符 Original: checks if a character is a space character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isblank （C++11）	检查，如果字符是一个空字符 Original: checks if a character is a blank character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
isprint	如果一个字符的打印字符的检查 Original: checks if a character is a printing character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
ispunct	如果一个字符的检查是一个标点符号 Original: checks if a character is a punctuation character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
字符操作 Original: Character manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
tolower	字符转换为小写 Original: converts a character to lowercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
toupper	字符转换为大写 Original: converts a character to uppercase The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）

ASCII values (hex)		characters	iscntrl iswcntrl	isprint iswprint	isspace iswspace	isblank iswblank	isgraph iswgraph	ispunct iswpunct	isalnum iswalnum	isalpha iswalpha	isupper iswupper	islower iswlower	isdigit iswdigit	isxdigit iswxdigit
0 - 8	0x00-0x08	control codes (NUL, etc.)	≠0	0	0	0	0	0	0	0	0	0	0	0
9	0x09	tab (\t)	≠0	0	≠0	≠0	0	0	0	0	0	0	0	0
10 - 13	0x0A-0x0D	whitespaces (\n,\v,\f,\r)	≠0	0	≠0	0	0	0	0	0	0	0	0	0
14 - 31	0x0E-0x1F	control codes	≠0	0	0	0	0	0	0	0	0	0	0	0
32	0x20	space	0	≠0	≠0	≠0	0	0	0	0	0	0	0	0
33 - 47	0x21-0x2F	!"#$%&'()*+,-./	0	≠0	0	0	≠0	≠0	0	0	0	0	0	0
48 - 57	0x30-0x39	0123456789	0	≠0	0	0	≠0	0	≠0	0	0	0	≠0	≠0
58 - 64	0x3a-0x40	:;<=>?@	0	≠0	0	0	≠0	≠0	0	0	0	0	0	0
65 - 70	0x41-0x46	ABCDEF	0	≠0	0	0	≠0	0	≠0	≠0	≠0	0	0	≠0
71 - 90	0x47-0x5A	GHIJKLMNOPQRSTUVWXYZ	0	≠0	0	0	≠0	0	≠0	≠0	≠0	0	0	0
91 - 96	0x5B-0x60	[\]^_`	0	≠0	0	0	≠0	≠0	0	0	0	0	0	0
97 -102	0x61-0x66	abcdef	0	≠0	0	0	≠0	0	≠0	≠0	0	≠0	0	≠0
103-122	0x67-0x7A	ghijklmnopqrstuvwxyz	0	≠0	0	0	≠0	0	≠0	≠0	0	≠0	0	0
123-126	0x7B-0x7E	{|}~	0	≠0	0	0	≠0	≠0	0	0	0	0	0	0
127	0x7F	backspace character (DEL)	≠0	0	0	0	0	0	0	0	0	0	0	0

转换为数字格式 Original: Conversions to numeric formats The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cstdlib>
atof	一个字节的字符串转换为浮点值 Original: converts a byte string to a floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
atoi atol atoll	一个字节的字符串转换为整数的值 Original: converts a byte string to an integer value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strtol strtoll	一个字节的字符串转换为整数的值 Original: converts a byte string to an integer value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strtoul strtoull	一个无符号整数的值转换为字节字符串 Original: converts a byte string to an unsigned integer value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strtof strtod strtold	一个字节的字符串转换为浮点值 Original: converts a byte string to a floating point value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
Defined in header <cinttypes>
strtoimax strtoumax （C++11） （C++11）	转换为字节字符串std::intmax_t或std::uintmax_t Original: converts a byte string to std::intmax_t or std::uintmax_t The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
字符串操作 Original: String manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cstring>
strcpy	一个字符串复制到另一个地方 Original: copies one string to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strncpy	复制一个字符从一个字符串到另一个的一定量的 Original: copies a certain amount of characters from one string to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strcat	连接两个字符串 Original: concatenates two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strncat	连接两个字符串的字符的一定量 Original: concatenates a certain amount of characters of two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strxfrm	转换为字符串，这样的strcmp会产生相同的结果strcoll Original: transform a string so that strcmp would produce the same result as strcoll The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
字符串检查 Original: String examination The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cstring>
strlen	返回一个给定的字符串的长度 Original: returns the length of a given string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strcmp	比较两个字符串 Original: compares two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strncmp	一定量的两个字符串的字符进行比较 Original: compares a certain amount of characters of two strings The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strcoll	按照目前的语言环境比较两个字符串 Original: compares two strings in accordance to the current locale The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strchr	找到第一个出现的字符 Original: finds the first occurrence of a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strrchr	找到最后出现的字符 Original: finds the last occurrence of a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strspn	返回的最大初始段，由 仅发现在另一个字节的字符串的字符的长度 Original: returns the length of the maximum initial segment that consists of only the characters found in another byte string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strcspn	返回的长度的最大初始段，由 只未发现另一个字节字符串中的字符 Original: returns the length of the maximum initial segment that consists of only the characters not found in another byte string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strpbrk	发现的第一个位置在一个字符串中的任何字符，在另一个字符串 Original: finds the first location of any character in one string, in another string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strstr	发现第一次出现的字符的子串 Original: finds the first occurrence of a substring of characters The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
strtok	发现一个字节的字符串中的下一个标记 Original: finds the next token in a byte string The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
字符数组操作 Original: Character array manipulation The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cstring>
memchr	搜索第一次出现的字符数组 Original: searches an array for the first occurrence of a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
memcmp	比较两个缓冲区 Original: compares two buffers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
memset	字符填充了一个缓冲区 Original: fills a buffer with a character The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
memcpy	一个缓冲区拷贝到另一个地方 Original: copies one buffer to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
memmove	一个缓冲器移动到另一个地方 Original: moves one buffer to another The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）
杂项 Original: Miscellaneous The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.
Defined in header <cstring>
strerror	返回一个给定的错误代码的文本版本 Original: returns a text version of a given error code The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. （函数）