number

函数名称：number

函数原型：static __attribute__((__noinline__)) char *number(char *buf, char *end, unsigned long long num, struct printf_spec spec)

返回类型：char

参数：

类型	参数	名称
char *	buf
char *	end
unsigned long long	num
struct printf_spec	spec

422

char tmp[3 * num的长度] gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-aligned-function-attribute* gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Type-Attributes.html#index-aligned-type-attribute* gcc: https://gcc(2)

425

need_pfx等于 flags to number() 按位与prefix hex with "0x", octal with "0" 且 number base, 8, 10 or 16 only 不等于10

427

is_zero等于num恒等于0LL

428

field_width等于 width of output field

429

precision等于 # of digits/chars

433

locase等于 flags to number() 按位与use lowercase in hex (must be 32 == 0x20)

434

如果 flags to number() 按位与left justified 则 flags to number() 与等于pad with zero, must be 16 == '0' - ' ' 的反

436

sign等于0

437

如果 flags to number() 按位与unsigned/signed, must be 1 则

438

如果num小于0则

439

sign等于'-'

440

num等于负num

441

field_width自减

442

否则如果 flags to number() 按位与show plus 则

443

sign等于'+'

444

field_width自减

445

否则如果 flags to number() 按位与space if plus 则

446

sign等于' '

447

field_width自减

450

如果need_pfx则

451

如果 number base, 8, 10 or 16 only 恒等于16则field_width减等于2

453

否则如果非is_zero则field_width自减

458

i等于0

459

如果num小于 number base, 8, 10 or 16 only 则tmp[i++]等于hex_asc_upper[num]按位或locase

461

否则如果 number base, 8, 10 or 16 only 不等于10则

462

mask等于 number base, 8, 10 or 16 only 减1

463

shift等于3

465

如果 number base, 8, 10 or 16 only 恒等于16则shift等于4

467

循环

468

tmp[i++]等于hex_asc_upper[((unsignedchar)num) & mask]按位或locase

469

num右移等于shift位

470

当num 循环

471

否则

472

i等于Based on code by Douglas W. Jones found at* * (with permission from the author).* Performs no 64-bit division and hence should be fast on 32-bit machines.减tmp

476

如果i大于precision则precision等于i

479

field_width减等于precision

480

如果非 flags to number() 按位与pad with zero, must be 16 == '0' - ' ' 按位或left justified 的值的值则

481

当field_width先自减大于等于0循环

482

如果buf小于end则buf等于' '

484

buf先自加

488

如果sign则

489

如果buf小于end则buf等于sign

491

buf先自加

494

如果need_pfx则

495

如果 number base, 8, 10 or 16 only 恒等于16或非is_zero则

496

如果buf小于end则buf等于'0'

498

buf先自加

500

如果 number base, 8, 10 or 16 only 恒等于16则

501

如果buf小于end则buf等于'X'按位或locase

503

buf先自加

507

如果非 flags to number() 按位与left justified 的值则

508

c等于' '加 flags to number() 按位与pad with zero, must be 16 == '0' - ' ' 的值

509

BUILD_BUG_ON - break compile if a condition is true(' ' + pad with zero, must be 16 == '0' - ' ' != '0')

510

当field_width先自减大于等于0循环

511

如果buf小于end则buf等于c

513

buf先自加

517

当i小于等于precision先自减循环

518

如果buf小于end则buf等于'0'

520

buf先自加

523

当i先自减大于等于0循环

524

如果buf小于end则buf等于tmp[i]

526

buf先自加

529

当field_width先自减大于等于0循环

530

如果buf小于end则buf等于' '

532

buf先自加

535

返回:buf

**调用者**
名称	描述
special_hex_number
err_ptr
pointer_string
bdev_name
resource_string
bitmap_string
bitmap_list_string
ip6_addr_string_sa
ip4_addr_string_sa
date_str
time_str
format_flags
device_node_string
vsnprintf	vsnprintf - Format a string and place it in a buffer@buf: The buffer to place the result into@size: The size of the buffer, including the trailing null space@fmt: The format string to use@args: Arguments for the format string* This function generally

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告