我正在尝试在Objective C中实现一个C库(libcss)。我在函数 css_stylesheet_create上得到一个“函数调用的参数太多,预期为4,有13” ()
code = css_stylesheet_create(CSS_LEVEL_DEFAULT, "UTF-8", "", NULL,
false, false, myrealloc, 0, resolve_url, 0, NULL, NULL,
&sheet);
css_stylesheet_create定义:
/**
* Parameter block for css_stylesheet_create()
*/
typedef struct css_stylesheet_params {
/** ABI version of this structure */
uint32_t params_version;
/** The language level of the stylesheet */
css_language_level level;
/** The charset of the stylesheet data, or NULL to detect */
const char *charset;
/** URL of stylesheet */
const char *url;
/** Title of stylesheet */
const char *title;
/** Permit quirky parsing of stylesheet */
bool allow_quirks;
/** This stylesheet is an inline style */
bool inline_style;
/** URL resolution function */
css_url_resolution_fn resolve;
/** Client private data for resolve */
void *resolve_pw;
/** Import notification function */
css_import_notification_fn import;
/** Client private data for import */
void *import_pw;
/** Colour resolution function */
css_color_resolution_fn color;
/** Client private data for color */
void *color_pw;
/** Font resolution function */
css_font_resolution_fn font;
/** Client private data for font */
void *font_pw;
} css_stylesheet_params;
css_error css_stylesheet_create(const css_stylesheet_params *params,
css_allocator_fn alloc, void *alloc_pw,
css_stylesheet **stylesheet);
答案 0 :(得分:3)
原型要求4个参数,调用有13个参数!
检查patch。他们正在完全改变css_stylesheet_create
功能。即他们将所有参数嵌入css_stylesheet_params
内,从而将css_stylesheet_create
的参数数量从13减少到4
所以你需要像这样打电话 -
css_stylesheet_params params;
params.level = CSS_LEVEL_DEFAULT;
params.charset = "UTF-8";
params.url = "";
params.title = NULL;
params.allow_quirks = false;
params.inline_style = false;
params.resolve = resolve_url;
params.resolve_pw = NULL;
params.import = NULL;
params.import_pw = NULL;
params.color = NULL;
params.color_pw = NULL;
css_stylesheet_create(¶ms, myrealloc, NULL, &sheet)
答案 1 :(得分:1)
是的,检查一下,在你的函数声明中你只给出了4个参数,但是你调用了4个以上参数的函数
css_error css_stylesheet_create(const css_stylesheet_params *params,
css_allocator_fn alloc, void *alloc_pw,
css_stylesheet **stylesheet);