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Design Patterns MCQ: Design Patterns Multiple Choice Questions and Answers

Design Patterns MCQ with answers and explanations for placement tests and job interviews. These solved Design Patterns MCQ are useful for the campus placement of all freshers including Engineering Students, MCA students, Computer and IT Engineers, etc. Our Design Patterns MCQ ( Design Patterns Multiple Choice Questions ) focuses on all areas of the Design […]

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Use of strrchr function in C/C++

The strrchr function finds the last occurrence of c (converted to a char) in the string pointed to by s. The terminating null character is also considered to be part of the string and it can be found if searching for ‘\0’. The strrchr function defines in string.h header file and takes two arguments. Syntax

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strchr function in C/CPP with its applications

The strchr function finds the first occurrence of c (converted to a char) in the string pointed to by s. The terminating null character is also considered to be part of the string and it can be found if searching for ‘\0’. The strchr function defines in string.h header file and takes two arguments. Syntax

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How to use and implement memchr in C

The memchr function finds the first occurrence of c (converted to an unsigned char) in the initial n characters (each interpreted as unsigned char) of the object pointed to by s. The behavior of memchr is undefined if we try to access beyond the end of the array searched. The behavior is undefined if s

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How to use strxfrm function in C programming.

The strxfrm function transforms (into a new collated form) the string pointed to by s2 and places the resulting string into the array pointed to by s1. The transformation is made using the locale’s LC_COLLATE category setting and No more than n characters, including the null character, are transformed and placed into the resulting array

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How to use and Implement own strncmp in C

The strncmp function compares not more than n characters (characters that follow a null character are not compared) from the array pointed to by s1 to the array pointed to by s2. Syntax of strncmp(): int strncmp(const char *s1, const char *s2, size_t n); Parameters: s1 − This is the first string to be compared.

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How to use strstr in C

The strstr function returns a pointer to the first occurrence of string s2 in string s1. The function returns the null pointer if the string is not found. The process of matching does not include the terminating null-characters(‘\0’). Syntax of strstr in C: char *strstr(const char *s1, const char *s2); Parameters: s1 − This

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How to use and Implement own memcmp in C

The memcmp function compares the first n characters of the object pointed to by s1 to the first n characters of the object pointed to by s2. If the n characters of s1 and s2 are the same then it returns 0, otherwise, it returns a non-zero value. Syntax of memcmp in C: int memcmp(const

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How to use and Implement own strcmp in C

The strcmp function compares the string pointed to by s1 to the string pointed to by s2. If two strings are the same then strcmp() returns 0, otherwise, it returns a non-zero value. Syntax strcmp in C: int strcmp(const char *s1, const char *s2); Parameters: s1— pointer to the string1. s2— pointer to the string2

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How to use and Implement own strcat in C

The strcat function appends a copy of the string to the end of the destination string (including the terminating null character). The initial character of the source string overwrites the null character at the end of the destination string. Note: If copying takes place between objects that overlap, the behavior is undefined. Syntax strcat in

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