参数资料
| 型号： | SW006015 |
| 厂商： | Microchip Technology |
| 文件页数： | 17/120页 |
| 文件大小： | 0K |
| 描述： | C COMPILER MPLAB C32 |
| 标准包装： | 1 |
| 类型： | 编译器 |
| 适用于相关产品： | PIC32 |
| 产品目录页面： | 659 (CN2011-ZH PDF) |
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Language Specifics
The first_to_check parameter specifies which parameter is the first to check
against the format string. If first_to_check is zero, type checking is not performed
and the compiler only checks the format string for consistency (e.g., vfprintf ).
format_arg (index)
The format_arg attribute specifies that a function manipulates a printf style format
string and that the compiler should check the format string for consistency. The function
attribute which is a format string is identified by index .
nonnull (index, ...)
Indicate to the compiler that one or more pointer arguments to the function must be
non-null. If the compiler determines that a null pointer is passed as a value to a non-null
argument, and the -Wnonnull command line option was specified, a warning
diagnostic is issued.
If no arguments are give to the nonnull attribute, all pointer arguments of the function
are marked as non-null.
unused
Indicate to the compiler that the function may not be used. The compiler will not issue
a warning for this function if it is not used.
used
Indicate to the compiler that the function is always used and code must be generated
for the function even if the compiler cannot see a reference to the function. For
example, if inline assembly is the only reference to a static function.
deprecated
When a function specified as deprecated is used, a warning is generated.
warn_unused_result
A warning will be issued if the return value of the indicated function is unused by a
caller.
weak
A weak symbol indicates that if another version of the same symbol is available, that
version should be used instead. For example, this is useful when a library function is
implemented such that it can be overridden by a user written function.
malloc
Any non-null pointer return value from the indicated function will not alias any other
pointer which is live at the point when the function returns. This allows the compiler to
improve optimization.
alias (“symbol”)
Indicates that the function is an alias for another symbol. For example,
void foo (void) { /* stuff */ }
void bar (void) __attribute__ ((alias(“foo”)));
Symbol bar is considered to be an alias for symbol foo .
1.7.2
Variable Attributes
aligned (n)
The attributed variable will aligned on the next n byte boundary.
The aligned attribute can also be used on a structure member. Such a member will
be aligned to the indicated boundary within the structure.
If the alignment value n is omitted, the alignment of the variable is set 8 (the largest
alignment value for a basic data type).
? 2007 Microchip Technology Inc.
DS51686A-page 13
相关PDF资料 |
PDF描述 |
|---|---|
| SW300003-EVAL | LIBRARY SOFT MODEM-EVAL ONLY |
| SW300010-EVAL | SPEECH RECOG LIBRARY-EVAL ONLY |
| SW300040-EVAL | LIBRARY NOISE SUPPR-EVAL ONLY |
| SW300060-EVAL | LIBRARY ACOUSTIC ECHO-EVAL ONLY |
| SW300070-EVAL | SOFTWARE LIBR ENC/DEC EVAL ONLY |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SW006021-1 | 制造商:Microchip Technology 功能描述:MPLAB XC8 STANDARD COMPILER 制造商:Microchip Technology Inc 功能描述:COMPILER MPLAB XC8 STD 制造商:Microchip Technology Inc 功能描述:COMPILER MPLAB XC8 STANDARD 制造商:Microchip Technology Inc 功能描述:COMPILER, MPLAB XC8, STANDARD 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 ANSI C Compiler for the PIC10 (12),(16),(18) (Workstation License) 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 Standard Compiler 制造商:Microchip Technology Inc 功能描述:OPTOCOUPLERS; Core Architecture:PIC; Software Edition:Standard |
| SW006021-1N | 制造商:Microchip Technology 功能描述:MPLAB XC8 STANDARD COMPILER (F 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 STANDARD COMPILER (FLOATING LICENSE) - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:COMPILER MPLAB XC8 STD FLOAT LIC 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 Standard Compiler (Fltng Lic) |
| SW006021-2 | 制造商:Microchip Technology 功能描述:MPLAB XC8 PRO COMPILER WORKSTATION LICENSE 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 PRO COMPILER - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:COMPILER MPLAB XC8 PRO 制造商:Microchip Technology Inc 功能描述:COMPILER, MPLAB XC8, PRO 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 ANSI PRO Compiler for the PIC10 (12),(16),(18) (Workstation License) 制造商:Microchip Technology Inc 功能描述:MPLAB XC8 PRO Compiler 制造商:Microchip Technology Inc 功能描述:SOFTWARE TOOL, MPLAB XC8 PRO COMPILER; Core Architecture:PIC; Supported Families:PIC10, PIC16, PIC18; Software Edition:Linux; License Type:Floating - node; No. of User Licenses:1; Supported Hosts:- |
| SW006021-2C | 制造商:Microchip Technology Inc 功能描述:COMPILER MPLAB XC8 PRO CHI |
| SW006021-2N | 功能描述:开发软件 MPLAB XC8 PRO Compiler (Fltng Lic) RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors |
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