{"id":8936,"date":"2018-12-24T10:44:32","date_gmt":"2018-12-24T10:44:32","guid":{"rendered":"http:\/\/blog.bachi.net\/?p=8936"},"modified":"2018-12-24T10:44:32","modified_gmt":"2018-12-24T10:44:32","slug":"programmiersprache-c-c95-c99-c11-c18","status":"publish","type":"post","link":"https:\/\/blog.bachi.net\/?p=8936","title":{"rendered":"Programmiersprache C (C95, C99, C11, C18)"},"content":{"rendered":"

C99 Definition<\/a>
\nNULL Pointer<\/a>
\nC Programming\/stdint.h<\/a><\/p>\n

inttypes.h – fixed size integer types<\/a>
\nstdint.h – integer types<\/a><\/p>\n

Include<\/h1>\n\n\n\n\n
NULL<\/td>\nstddef.h<\/td>\n<\/tr>\n
size_t<\/td>\nstddef.h<\/td>\n<\/tr>\n
uint32_t<\/td>\nstdint.h<\/td>\n<\/tr>\n<\/table>\n\n\n\n\n\n\n
stddef.h<\/td>\nNULL, size_t<\/td>\n<\/tr>\n
stdbool.h<\/td>\nbool, true, false<\/td>\n<\/tr>\n
stdint.h<\/td>\nuint32_t<\/td>\n<\/tr>\n
limits.h<\/td>\nINT_MIN, UINT_MAX<\/td>\n<\/tr>\n
inttypes.h<\/td>\nPRId32, PRIx32<\/td>\n<\/tr>\n<\/table>\n

Varianten der Programmiersprache C<\/a><\/p>\n

Pr\u00e4prozessor<\/h1>\n

C preprocessor<\/a><\/p>\n

Stop on Preprocessor<\/h3>\n

Can gcc output C code after preprocessing?<\/a><\/p>\n

\r\n$ gcc -E test.c\r\n<\/pre>\n
Concatenation<\/h3>\n
Concatenation<\/a><\/p>\n
\r\nstruct command\r\n{\r\n  char *name;\r\n  void (*function) (void);\r\n};\r\n\r\n#define COMMAND(NAME)  { #NAME, NAME ## _command }\r\n\r\nstruct command commands[] =\r\n{\r\n  COMMAND (quit),\r\n  COMMAND (help),\r\n  \u2026\r\n};\r\n\r\n\/* === RESULT === *\/\r\nstruct command commands[] =\r\n{\r\n  { "quit", quit_command },\r\n  { "help", help_command },\r\n  \u2026\r\n};\r\n<\/pre>\n
Variadic macro __VA_ARGS__<\/code><\/h3>\n
Variadic Macros<\/a>
\nVariadic macro<\/a><\/p>\n
\r\n#define MYLOG(FormatLiteral, ...)  \\\r\n        fprintf (stderr, "%s(%u): " FormatLiteral "\\n", \\\r\n        __FILE__, __LINE__, __VA_ARGS__)\r\n<\/pre>\n
Structs<\/h1>\n
struct (C programming language)<\/a><\/p>\n
Struct initialization<\/h2>\n
Designated Initializer<\/h3>\n
Designated Initializers<\/a>
\nWhy does C++11 not support designated initializer lists as C99?<\/a><\/p>\n
\r\n\/* Forward declare a type "point" to be a struct. *\/\r\ntypedef struct point point;\r\n\/* Declare the struct with integer members x, y *\/\r\nstruct point {\r\n   int    x;\r\n   int    y;\r\n};\r\n\r\n\/* Define a variable p of type point, and\r\n   initialize its first two members in place *\/\r\npoint p = {\r\n    1,\r\n    2\r\n};\r\n\r\n\/* Define a variable p of type point, an\r\n   set members using designated  initializers*\/\r\npoint p = { \r\n    .y = 2,\r\n    .x = 1\r\n};\r\n<\/pre>\n
<\/h3>\n","protected":false},"excerpt":{"rendered":"
C99 Definition NULL Pointer C Programming\/stdint.h inttypes.h – fixed size integer types stdint.h – integer types Include NULL stddef.h size_t stddef.h uint32_t stdint.h stddef.h NULL, size_t stdbool.h bool, true, false stdint.h uint32_t limits.h INT_MIN, UINT_MAX inttypes.h PRId32, PRIx32 Varianten der Programmiersprache C Pr\u00e4prozessor C preprocessor Stop on Preprocessor Can gcc output C code after preprocessing? […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-8936","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/8936","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8936"}],"version-history":[{"count":1,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/8936\/revisions"}],"predecessor-version":[{"id":8937,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=\/wp\/v2\/posts\/8936\/revisions\/8937"}],"wp:attachment":[{"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8936"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8936"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.bachi.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8936"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}