{"id":1633,"date":"2013-01-23T08:54:29","date_gmt":"2013-01-22T23:54:29","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=1633"},"modified":"2018-11-14T16:33:57","modified_gmt":"2018-11-14T07:33:57","slug":"c%e8%a8%80%e8%aa%9e%e3%81%8b%e3%82%89gauche%e3%82%92%e4%bd%bf%e3%81%8a%e3%81%86%ef%bc%81-5-scm_eval%e3%81%a7eval%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2013\/01\/23\/c%e8%a8%80%e8%aa%9e%e3%81%8b%e3%82%89gauche%e3%82%92%e4%bd%bf%e3%81%8a%e3%81%86%ef%bc%81-5-scm_eval%e3%81%a7eval%e3%81%99%e3%82%8b\/","title":{"rendered":"C\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01 (5) Scm_Eval\u3067eval\u3059\u308b"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u300cC\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01\u300d\u30b7\u30ea\u30fc\u30ba\u3067\u3059\u3002<\/p>\n<p>\u524d\u56de\u306e\u300c<a title=\"C\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01 (4) Scm_EvalCString\u3067eval\u3059\u308b\" href=\"http:\/\/www.techscore.com\/blog\/2013\/01\/18\/c%e8%a8%80%e8%aa%9e%e3%81%8b%e3%82%89gauche%e3%82%92%e4%bd%bf%e3%81%8a%e3%81%86%ef%bc%81-4-scm_evalcstring%e3%81%a7eval%e3%81%99%e3%82%8b\/\">C\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01 (4) Scm_EvalCString\u3067eval\u3059\u308b<\/a>\u300d\u3067\u306f C \u6587\u5b57\u5217\u3092 eval \u3059\u308b\u65b9\u6cd5\u3092\u8abf\u3079\u307e\u3057\u305f\u3002<\/p>\n<p>\u4eca\u56de\u306f Scm_Eval \u3067 eval \u3059\u308b\u65b9\u6cd5\u3001\u3064\u307e\u308a Gauche API \u3067\u7d44\u307f\u7acb\u3066\u305f S \u5f0f\u3092 eval \u3059\u308b\u65b9\u6cd5\u3092\u8abf\u3079\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>Scm_Eval \u95a2\u6570<\/h2>\n<p>\u524d\u56de\u540c\u69d8\u3001\u4ee5\u4e0b\u306e Scheme \u30d7\u30ed\u30b0\u30e9\u30e0\u76f8\u5f53\u306e\u51e6\u7406\u3092\u884c\u3044\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:scheme decode:true\">(eval '(+ 10 20) (interaction-environment))<\/pre>\n<p>\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"lang:c decode:true \">#include &lt;stdio.h&gt;\r\n#include &lt;gauche.h&gt;\r\n\r\nint main()\r\n{\r\n    ScmObj expression;\r\n    ScmEvalPacket eval_packet;\r\n\r\n    GC_INIT();\r\n    Scm_Init(GAUCHE_SIGNATURE);\r\n\r\n    expression = SCM_LIST3(SCM_INTERN(\"+\"), SCM_MAKE_INT(10), SCM_MAKE_INT(20));\r\n\r\n    if(Scm_Eval(expression, SCM_OBJ(Scm_UserModule()), &amp;eval_packet) &lt; 0) {\r\n        printf(\"[%s] %s\\n\",\r\n               SCM_STRING_CONST_CSTRING(Scm_ConditionTypeName(eval_packet.exception)),\r\n               SCM_STRING_CONST_CSTRING(Scm_ConditionMessage(eval_packet.exception)));\r\n    } else {\r\n        printf(\"%ld\\n\", SCM_INT_VALUE(eval_packet.results[0]));\r\n    }\r\n\r\n    return 0;\r\n}<\/pre>\n<p>\u30dd\u30a4\u30f3\u30c8\u306f expression \u3068\u3044\u3046\u5909\u6570\u3092\u521d\u671f\u5316\u3057\u3066\u3044\u308b\u90e8\u5206\u3067\u3059\u3002<\/p>\n<p>SCM_INTERN(\"+\") \u3067\u53d6\u5f97\u3057\u305f\u30b7\u30f3\u30dc\u30eb\u3068\u3001SCM_MAKE_INT(10) \u3068 SCM_MAKE_INT(20) \u304b\u3089\u306a\u308b\u30ea\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u304c eval \u3059\u308b S \u5f0f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4ed6\u306e\u90e8\u5206\u306f\u524d\u56de\u3068\u307b\u3068\u3093\u3069\u540c\u3058\u3067\u3001Scm_EvalCString \u306e\u4ee3\u308f\u308a\u306b Scm_Eval \u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30a8\u30e9\u30fc\u51e6\u7406\u306f\u8a55\u4fa1\u7d50\u679c\u306e\u53d6\u5f97\u65b9\u6cd5\u306f\u524d\u56de\u306e Scm_EvalCString \u306e\u5834\u5408\u3068\u540c\u3058\u3067\u3059\u3002<\/p>\n<p>\u5b9f\u884c\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u51fa\u529b\u304c\u5f97\u3089\u308c\u307e\u3059\u3002\uff08\u203b\u300c<a title=\"C\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01 (1) \u30b3\u30f3\u30d1\u30a4\u30eb\u74b0\u5883\u3092\u6574\u3048\u308b\" href=\"http:\/\/www.techscore.com\/blog\/2013\/01\/15\/c%e8%a8%80%e8%aa%9e%e3%81%8b%e3%82%89gauche%e3%82%92%e4%bd%bf%e3%81%8a%e3%81%86%ef%bc%81-1-%e3%82%b3%e3%83%b3%e3%83%91%e3%82%a4%e3%83%ab%e7%92%b0%e5%a2%83%e3%82%92%e6%95%b4%e3%81%88%e3%82%8b\/\">C\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01 (1) \u30b3\u30f3\u30d1\u30a4\u30eb\u74b0\u5883\u3092\u6574\u3048\u308b<\/a>\u300d\u3067\u4f5c\u6210\u3057\u305f Makefile \u3092\u4f7f\u7528\u3057\u307e\u3059\uff09<\/p>\n<pre class=\"lang:sh decode:true\">&gt; make run\r\n30<\/pre>\n<p>&nbsp;<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3069\u3053\u307e\u3067\u7d9a\u3051\u3089\u308c\u308b\u304b\u5fc3\u914d\u3057\u306a\u304c\u3089\u300cC\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01\u300d\u30b7\u30ea\u30fc\u30ba\u3092\u66f8\u3044\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u4eca\u56de\u306f\u6bd4\u8f03\u7684\u697d\u306b\u8abf\u3079\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3057\u305f\u3002<\/p>\n<p>\u4eca\u56de\u306e\u30dd\u30a4\u30f3\u30c8\u306f SCM_INTERN() \u3067\u30b7\u30f3\u30dc\u30eb\u3092\u53d6\u5f97\u3059\u308b\u90e8\u5206\u3067\u3057\u305f\uff08\u4ed6\u306f Scm_EvalCString \u3068\u540c\u3058\u3067\u3057\u305f\uff09\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u300cC\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01\u300d\u30b7\u30ea\u30fc\u30ba\u3067\u3059\u3002<\/p>\n<p>\u524d\u56de\u306e\u300cC\u8a00\u8a9e\u304b\u3089Gauche\u3092\u4f7f\u304a\u3046\uff01 (4) Scm_EvalCString\u3067eval\u3059\u308b\u300d\u3067\u306f C \u6587\u5b57\u5217\u3092 eval \u3059\u308b\u65b9\u6cd5\u3092\u8abf\u3079\u307e\u3057\u305f\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2013\/01\/23\/c%e8%a8%80%e8%aa%9e%e3%81%8b%e3%82%89gauche%e3%82%92%e4%bd%bf%e3%81%8a%e3%81%86%ef%bc%81-5-scm_eval%e3%81%a7eval%e3%81%99%e3%82%8b\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[85,18],"tags":[79,78,77],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1633"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=1633"}],"version-history":[{"count":3,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1633\/revisions"}],"predecessor-version":[{"id":17971,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1633\/revisions\/17971"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=1633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=1633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=1633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}