51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define READ_MAX 255
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static char test_str1[] = "123454567890abcdefghijklmnopqrstufvwxyz";
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static char test_str2[READ_MAX];
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int main(int argc, char** argv)
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{
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int i = 0;
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FILE* f;
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// write to file
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debug_printf("Write file...\n");
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f = fopen("testfile.txt", "w");
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while (test_str1[i] != 'a') {
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fputc(test_str1[i], f);
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i++;
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}
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fclose(f);
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// append to file
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debug_printf("Apend file...\n");
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f = fopen("testfile.txt", "a");
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fputs(test_str1 + i, f);
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char null_term = '\0';
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fwrite(&null_term, sizeof(char), 1, f);
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printf("Error: %s\n", strerror(errno));
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fclose(f);
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// copy from testfile.txt to copyfile.txt
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debug_printf("Read file...\n");
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f = fopen("testfile.txt", "r");
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i = 0;
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while ((test_str2[i] = fgetc(f)) != EOF && i < READ_MAX) {
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fputc(test_str2[i], stdout);
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i++;
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}
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printf("\n%s\n", test_str1);
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if (!strcmp(test_str2, test_str1)) {
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puts("TEST: OK!");
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} else {
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puts("TEST: FAIL!");
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}
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fclose(f);
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}
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