defined(_XOPEN_SOURCE) && !defined(_POSIX_C_SOURCE) #if defined(__cplusplus) #define _XOPEN_SOURCE 700 /* SUS v4, POSIX 1003.1 2008/13 (POSIX 2008/13) */ #elif __STDC_VERSION__ >= 199901L #define _XOPEN_SOURCE 700 /* SUS v4, POSIX 1003.1 2008/13 (POSIX 2008/13) */ #el...
# 1 "/usr/include/stdc-predef.h" 1 3 4 # 0 "" 2 # 1 "hello.c" # 1 "/usr/include/stdio.h" 1 3 4 # 27 "/usr/include/stdio.h" 3 4 # 1 "/usr/include/x86_64-linux-gnu/bits/libc-header-start.h" 1 3 4 # 33 "/usr/include/x86_64-linux-gnu/bits/libc-header-start....
It seems glibc doesn't. In fact, according to the cppreference, __STDC_WANT_LIB_EXT1__ will only work if __STDC_LIB_EXT1__ is defined. On my Arch Linux it isn't. #ifdef __STDC_LIB_EXT1__ constexpr bool can_have_strcpy_s = true; #else constexpr bool can_have_strcpy_s =...
void *obstack_position = obstack_alloc (&parser_obstack, 0); mark_valid_location_for_stdc_pragma (false); do { ggc_collect (); c_parser_external_declaration (parser); obstack_free (&parser_obstack, obstack_position); } while (c_parser_next_token_is_not (parser, CPP_EOF)); //循环推...
check_gcc_stdc_version.zip心落**r∽ 在2024-01-16 18:12:14 上传2.43 KB 测试gcc和clang编译器是否支持C99/C11/C17标准官网网址 演示地址 授权方式: 界面语言: 平台环境: 点赞(0) 踩踩(0) 反馈 所需:1 积分 电信网络下载 下载申明(下载视为同意此申明) 1.在网站平台的任何操作视为已阅读和同意...
GCC主要数据结构之cpp_builtin_type,cpp_builtin_type:/*Differentflavorsofbuiltinmacro. _Pragmaisanoperator,butwe handleitwiththebuiltincodeforefficiencyreasons. */enumcpp_builtin_type{ BT_SPECLINE=0,
我也应该注意,我正在使用本书附带的VM映像。这是ubuntu和gcc的旧版本。 编辑:以下是请求的文件。 socket.h. #ifndef__BITS_SOCKET_H #define__BITS_SOCKET_H #if!defined _SYS_SOCKET_H && !defined _NETINET_IN_H #error"Never include <bits/socket.h> directly; use <sys/socket.h> instead." ...
#define __STDC_HOSTED__ 1 #define __LDBL_HAS_INFINITY__ 1 #define __FLT_EPSILON__ 1.19209290e-7F #define __LDBL_MIN__ 3.36210314311209350626e-4932L #define __DEC32_MAX__ 9.999999E96DF #define __SIZEOF_LONG__ 8 #define __DECIMAL_DIG__ 21 ...
For example: #define __STDC_FORMAT_MACROS #include <inttypes.h> #include <stdio.h> int main() { int64_t i64 = 123; printf("My int64: %"PRId64"\n", i64); } In this case, "PRId64" is treated as a separate preprocessing token. This warning is enabled by default. -Wnarrowing ...
(显然,包含 \xe2\x80\x9c/usr/include/stdc-predef.h\xe2\x80\x9d 导致没有代码行,可能是因为该文件完全被 \ #ifxe2\x80\xa6对#endif包裹未激活。)\n \n \xe2\x80\xa6 当其预处理器删除注释时?\n\n 当GCC 预处理删除注释时,它会保留换行符,因此行距保持不变。例如,在处理输入时:\n abc\n/* ...