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#include <cppgit2/data_buffer.hpp>

namespace cppgit2 {

/* Used as default value for git_buf->ptr so that people can always

* assume ptr is non-NULL and zero terminated even for new git_bufs.

char git_buf__initbuf[1];

/* Use to initialize buffer structure when git_buf is on stack */

#define GIT_BUF_INIT \

{ git_buf__initbuf, 0, 0 }

data_buffer::data_buffer() { c_struct_ = GIT_BUF_INIT; }

data_buffer::data_buffer(size_t n) {

c_struct_.ptr = (char *)malloc(n * sizeof(char));

if (c_struct_.ptr)

memset(c_struct_.ptr, '\0', n * sizeof(char));

c_struct_.asize = n;

c_struct_.size = 0;

}

data_buffer::data_buffer(const git_buf *c_ptr) {

c_struct_.ptr = (char *)malloc(c_ptr->asize * sizeof(char));

c_struct_.asize = c_ptr->asize;

c_struct_.size = c_ptr->size;

if (c_struct_.ptr)

strncpy(c_struct_.ptr, c_ptr->ptr, c_ptr->asize);

}

data_buffer::~data_buffer() {

if (c_struct_.size)

git_buf_dispose(&c_struct_);

}

bool data_buffer::contains_nul() const {

return git_buf_contains_nul(&c_struct_);

}

void data_buffer::grow_to_size(size_t target_size) {

if (git_buf_grow(&c_struct_, target_size))

throw git_exception();

}

bool data_buffer::is_binary() const { return git_buf_is_binary(&c_struct_); }

void data_buffer::set_buffer(const std::string &buffer) {

if (git_buf_set(&c_struct_, buffer.c_str(), buffer.size()))

throw git_exception();

}

std::string data_buffer::to_string() const {

if (c_struct_.size)

return std::string(c_struct_.ptr);

else

return "";

}

git_buf *data_buffer::c_ptr() { return &c_struct_; }

const git_buf *data_buffer::c_ptr() const { return &c_struct_; }

} // namespace cppgit2

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