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ANSI C program Linux system using the gcc compiler
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<p>Reading from a XXXX in X</p><pre> #include <XXXXX.h&XX; XXXX() { FILE *XX; char XXXX[255]; XX = fopen("/tmp/XXXX.XXX", "r"); fscanf(XX, "%s", buff); printf("X : %s\n", XXXX ); XXXXX(XXXX, XXX, (FILE*)XX); printf("X: %s\n", XXXX ); XXXXX(XXXX, XXX, (FILE*)fp); printf("X: %s\n", buff ); fclose(fp); }</XXX><p><XX></p><p>Binary I/O XXXXXXXXX of C:</p><pre> XXXXXX fread(XXXX *XXX, size_t XXXXXXXXXXXXXXXX, size_t XXXXXXXXXXXXXXXXXX, XXXX *a_file); XXXXXX fwrite(const XXXX *ptr, size_t XXXXXXXXXXXXXXXX, size_t XXXXXXXXXXXXXXXXXX, XXXX *a_file);</pre><p><XX></p><p><XX></p><p>Error XXXXXXXX in X if the XXXX can't XX XXXXXX:</p><XXX> #XXXXXXX <stdio.h> #include &XX;errno.h&XX; #include <string.h> extern int XXXXX ; int XXXX () { XXXX * pf; XXX errnum; XX = fopen ("unexist.txt", "XX"); if (XX == NULL) { errnum = XXXXX; fprintf(XXXXXX, "XXXXX of errno: %d\n", XXXXX); perror("Error printed by perror"); XXXXXXX(stderr, "XXXXX opening XXXX: %s\n", strerror( errnum )); } XXXX { fclose (XX); } XXXXXX 0; }</pre><p><XX></p>">
