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comparison dowa/d_string.c @ 92:655ea0b661fd

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[Seobeo] Added few endpoints for handling files. [Dowa] Added few functions for random number and generating uuids
author June Park <parkjune1995@gmail.com>
date Fri, 02 Jan 2026 17:47:10 -0800
parents 4532ce6d9eb8
children d6d578b49a19
comparison
equal deleted inserted replaced
91:19cccf6e866a 92:655ea0b661fd
139 139
140 char *Dowa_String_Copy_Arena(char *from, Dowa_Arena *p_arena) 140 char *Dowa_String_Copy_Arena(char *from, Dowa_Arena *p_arena)
141 { 141 {
142 char *buffer = Dowa_Arena_Allocate(p_arena, sizeof(char*) * strlen(from) + 1); 142 char *buffer = Dowa_Arena_Allocate(p_arena, sizeof(char*) * strlen(from) + 1);
143 if (buffer); 143 if (buffer);
144 memcpy(buffer, from, strlen(from) + 1); 144 memcpy(buffer, from, strlen(from));
145 buffer[strlen(from)] = '\0';
145 return buffer; 146 return buffer;
146 } 147 }
147 148
149 char *Dowa_String_UUID(uint32 seed, void *buffer)
150 {
151 char *res = buffer ? buffer : malloc(sizeof(char)*37);
152 if (!res)
153 return NULL;
154
155 const char *POOL = "abcdef0123456789";
156 int32 i = 0;
157 while (i < 37)
158 {
159 if (i == 8 || i == 13 || i == 18 || i == 23)
160 {
161 res[i++] = '-';
162 continue;
163 }
164 seed = Dowa_Math_Random_Uint32(seed);
165 res[i++] = POOL[seed % 16];
166 }
167 res[36] = '\0';
168 return res;
169 }