71. Which of the following doesn't require an & for the input in scanf()?
72. For floating point numbers, the precision flag specifies the number of decimal places to be printed. When no precision modifier is specified, printf() prints . . . . . . . .
73. Which of the following is the correct syntax for calling function ungetc?
Assume int c and FILE *fp
Assume int c and FILE *fp74. Which of the following cannot be used with ungetc()?
75. Which character of pushback is guaranteed per file?
76. If the user enters 1 s 3.2, what value will be returned by the scanf()?
scanf("%d %f %c", &a, &b, &c);
scanf("%d %f %c", &a, &b, &c);77. String operation such as strcat(s, t), strcmp(s, t), strcpy(s, t) and strlen(s) heavily rely upon.
78. What will be the output of the following C code?
#include <stdio.h>
int main()
{
char str[10] = "hello";
char *p = strrchr(str, 'l');
printf("%c\n", *(++p));
}
#include <stdio.h>
int main()
{
char str[10] = "hello";
char *p = strrchr(str, 'l');
printf("%c\n", *(++p));
}79. Which function will return the current file position for stream?
80. When a C program is started, O.S environment is responsible for opening file and providing pointer for that file?
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