1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | #include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <assert.h>
int main(int argc, char* argv[]) {
char const* filename = __FILE__ ".bin"; // "write_double.c.bin"
// file opened in wrtie mode
// no indicator here its a binary file
FILE* file = fopen(filename, "w");
// writing
double num = 1234.0;
fwrite(&num, sizeof(num), 1, file);
// don't forget to close
fclose(file);
return EXIT_SUCCESS;
}
/* vim: set tabstop=4 shiftwidth=4 fileencoding=utf-8 noexpandtab: */
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