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Fix compiler error when it encountered 1.0/0.0. It does not want to deal

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with division by 0.
Tricked the compiler to use volatile local variable zero instead, so it
does not know for sure whether or not it's going to be zero.
This commit is contained in:
Irwan Djajadi 2016-04-22 14:27:20 -05:00
parent e6b352d126
commit 224c2a8485
1 changed files with 16 additions and 15 deletions
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31
test.c
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@ -1,16 +1,16 @@
/* /*
Copyright (c) 2009 Dave Gamble Copyright (c) 2009 Dave Gamble
Permission is hereby granted, free of charge, to any person obtaining a copy Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions: furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software. all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
@ -28,7 +28,7 @@
void doit(char *text) void doit(char *text)
{ {
char *out;cJSON *json; char *out;cJSON *json;
json=cJSON_Parse(text); json=cJSON_Parse(text);
if (!json) {printf("Error before: [%s]\n",cJSON_GetErrorPtr());} if (!json) {printf("Error before: [%s]\n",cJSON_GetErrorPtr());}
else else
@ -44,7 +44,7 @@ void doit(char *text)
void dofile(char *filename) void dofile(char *filename)
{ {
FILE *f;long len;char *data; FILE *f;long len;char *data;
f=fopen(filename,"rb");fseek(f,0,SEEK_END);len=ftell(f);fseek(f,0,SEEK_SET); f=fopen(filename,"rb");fseek(f,0,SEEK_END);len=ftell(f);fseek(f,0,SEEK_SET);
data=(char*)malloc(len+1);fread(data,1,len,f);data[len]='\0';fclose(f); data=(char*)malloc(len+1);fread(data,1,len,f);data[len]='\0';fclose(f);
doit(data); doit(data);
@ -68,11 +68,12 @@ void create_objects()
struct record fields[2]={ struct record fields[2]={
{"zip",37.7668,-1.223959e+2,"","SAN FRANCISCO","CA","94107","US"}, {"zip",37.7668,-1.223959e+2,"","SAN FRANCISCO","CA","94107","US"},
{"zip",37.371991,-1.22026e+2,"","SUNNYVALE","CA","94085","US"}}; {"zip",37.371991,-1.22026e+2,"","SUNNYVALE","CA","94085","US"}};
volatile double zero = 0.0;
/* Here we construct some JSON standards, from the JSON site. */ /* Here we construct some JSON standards, from the JSON site. */
/* Our "Video" datatype: */ /* Our "Video" datatype: */
root=cJSON_CreateObject(); root=cJSON_CreateObject();
cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble")); cJSON_AddItemToObject(root, "name", cJSON_CreateString("Jack (\"Bee\") Nimble"));
cJSON_AddItemToObject(root, "format", fmt=cJSON_CreateObject()); cJSON_AddItemToObject(root, "format", fmt=cJSON_CreateObject());
cJSON_AddStringToObject(fmt,"type", "rect"); cJSON_AddStringToObject(fmt,"type", "rect");
@ -80,7 +81,7 @@ void create_objects()
cJSON_AddNumberToObject(fmt,"height", 1080); cJSON_AddNumberToObject(fmt,"height", 1080);
cJSON_AddFalseToObject (fmt,"interlace"); cJSON_AddFalseToObject (fmt,"interlace");
cJSON_AddNumberToObject(fmt,"frame rate", 24); cJSON_AddNumberToObject(fmt,"frame rate", 24);
out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out); /* Print to text, Delete the cJSON, print it, release the string. */ out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out); /* Print to text, Delete the cJSON, print it, release the string. */
/* Our "days of the week" array: */ /* Our "days of the week" array: */
@ -93,7 +94,7 @@ void create_objects()
for (i=0;i<3;i++) cJSON_AddItemToArray(root,cJSON_CreateIntArray(numbers[i],3)); for (i=0;i<3;i++) cJSON_AddItemToArray(root,cJSON_CreateIntArray(numbers[i],3));
/* cJSON_ReplaceItemInArray(root,1,cJSON_CreateString("Replacement")); */ /* cJSON_ReplaceItemInArray(root,1,cJSON_CreateString("Replacement")); */
out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out); out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);
@ -126,19 +127,19 @@ void create_objects()
cJSON_AddStringToObject(fld, "Zip", fields[i].zip); cJSON_AddStringToObject(fld, "Zip", fields[i].zip);
cJSON_AddStringToObject(fld, "Country", fields[i].country); cJSON_AddStringToObject(fld, "Country", fields[i].country);
} }
/* cJSON_ReplaceItemInObject(cJSON_GetArrayItem(root,1),"City",cJSON_CreateIntArray(ids,4)); */ /* cJSON_ReplaceItemInObject(cJSON_GetArrayItem(root,1),"City",cJSON_CreateIntArray(ids,4)); */
out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out); out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);
root=cJSON_CreateObject(); root=cJSON_CreateObject();
cJSON_AddNumberToObject(root,"number", 1.0/0.0); cJSON_AddNumberToObject(root,"number", 1.0/zero);
out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out); out=cJSON_Print(root); cJSON_Delete(root); printf("%s\n",out); free(out);
} }
int main (int argc, const char * argv[]) { int main (int argc, const char * argv[]) {
/* a bunch of json: */ /* a bunch of json: */
char text1[]="{\n\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n\"format\": {\"type\": \"rect\", \n\"width\": 1920, \n\"height\": 1080, \n\"interlace\": false,\"frame rate\": 24\n}\n}"; char text1[]="{\n\"name\": \"Jack (\\\"Bee\\\") Nimble\", \n\"format\": {\"type\": \"rect\", \n\"width\": 1920, \n\"height\": 1080, \n\"interlace\": false,\"frame rate\": 24\n}\n}";
char text2[]="[\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"]"; char text2[]="[\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"]";
char text3[]="[\n [0, -1, 0],\n [1, 0, 0],\n [0, 0, 1]\n ]\n"; char text3[]="[\n [0, -1, 0],\n [1, 0, 0],\n [0, 0, 1]\n ]\n";
char text4[]="{\n \"Image\": {\n \"Width\": 800,\n \"Height\": 600,\n \"Title\": \"View from 15th Floor\",\n \"Thumbnail\": {\n \"Url\": \"http:/*www.example.com/image/481989943\",\n \"Height\": 125,\n \"Width\": \"100\"\n },\n \"IDs\": [116, 943, 234, 38793]\n }\n }"; char text4[]="{\n \"Image\": {\n \"Width\": 800,\n \"Height\": 600,\n \"Title\": \"View from 15th Floor\",\n \"Thumbnail\": {\n \"Url\": \"http:/*www.example.com/image/481989943\",\n \"Height\": 125,\n \"Width\": \"100\"\n },\n \"IDs\": [116, 943, 234, 38793]\n }\n }";
@ -163,7 +164,7 @@ int main (int argc, const char * argv[]) {
/* Process each json textblock by parsing, then rebuilding: */ /* Process each json textblock by parsing, then rebuilding: */
doit(text1); doit(text1);
doit(text2); doit(text2);
doit(text3); doit(text3);
doit(text4); doit(text4);
doit(text5); doit(text5);
@ -179,6 +180,6 @@ int main (int argc, const char * argv[]) {
/* Now some samplecode for building objects concisely: */ /* Now some samplecode for building objects concisely: */
create_objects(); create_objects();
return 0; return 0;
} }