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comparison src/dmgrowbuf.c @ 2298:b5abfff07ca9

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Add new DMGrowBuf helper functions dmGrowBufCopyOffsSize() and dmGrowBufConstCopyOffsSize().
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 04 Jul 2019 10:54:16 +0300
parents 39b4e06785f5
children c801995cbb13
comparison
equal deleted inserted replaced
2297:39b4e06785f5 2298:b5abfff07ca9
142 { 142 {
143 return dmGrowBufConstCreateFrom(dst, src->data + offs, src->len - offs); 143 return dmGrowBufConstCreateFrom(dst, src->data + offs, src->len - offs);
144 } 144 }
145 145
146 146
147 DMGrowBuf * dmGrowBufConstCopyOffsSize(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs, const size_t len)
148 {
149 if (src->len < offs + len)
150 return NULL;
151
152 return dmGrowBufConstCreateFrom(dst, src->data + offs, len);
153 }
154
155
147 DMGrowBuf * dmGrowBufCopyOffs(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs, const size_t enlarge) 156 DMGrowBuf * dmGrowBufCopyOffs(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs, const size_t enlarge)
148 { 157 {
149 DMGrowBuf tmp; 158 DMGrowBuf tmp;
150 return dmGrowBufCopy(dst, 159 return dmGrowBufCopy(dst,
151 dmGrowBufConstCreateFrom(&tmp, src->data + offs, src->len - offs), enlarge); 160 dmGrowBufConstCreateFrom(&tmp, src->data + offs, src->len - offs), enlarge);
161 }
162
163
164 DMGrowBuf * dmGrowBufCopyOffsSize(DMGrowBuf *dst, const DMGrowBuf *src, const size_t offs, const size_t len, const size_t enlarge)
165 {
166 DMGrowBuf tmp;
167
168 if (src->len < offs + len)
169 return NULL;
170
171 return dmGrowBufCopy(dst,
172 dmGrowBufConstCreateFrom(&tmp, src->data + offs, len), enlarge);
152 } 173 }
153 174
154 175
155 static BOOL dmGrowBufRealloc(DMGrowBuf *buf, const size_t nsize, const BOOL clear) 176 static BOOL dmGrowBufRealloc(DMGrowBuf *buf, const size_t nsize, const BOOL clear)
156 { 177 {