C++ Source Code Examples

This page contains source code examples of the C++ programming standard library's functions.

Memory Manipulation Functions

memcpy() function in C++
memmove() function in C++
memchr() function in C++
memcmp() function in C++
memset() function in C++

String Manipulation Functions

strcpy() function in C++
strcat() function in C++
strncat() function in C++

String Examination Functions

strlen() function in C++
strncmp() function in C++
strcmp() function in C++
strcoll() function in C++
strchr() function in C++
strspn() function in C++
strcspn() function in C++
strpbrk() function in C++
strstr() function in C++
strtok() function in C++

Error Handling Functions

strerror() function in C++

File Operations

fopen() function in C++
fclose() function in C++
freopen() function in C++
setbuf() function in C++

Formatted Input/Output Functions

fprintf() function in C++
fscanf() function in C++
scanf() function in C++
printf() function in C++
sprintf() function in C++
sscanf() function in C++

Character Input/Output Functions

fgetc() function in C++
fputc() function in C++
fgets() function in C++
fputs() function in C++

Direct Input/Output Functions

fread() function in C++
fwrite() function in C++

Memory Management Functions

malloc() function in C++
realloc() function in C++
calloc() function in C++
free() function in C++

Random Number Generation Functions

rand() function in C++

Process Control Functions

exit() function in C++
abort() function in C++
system() function in C++

Search & Sort Functions

bsearch() function in C++
qsort() function in C++

String Conversion Functions

atoi() function in C++
atol() function in C++
atof() function in C++
strtod() function in C++

strtol() function in C++

Utility Functions

abs() function in C++

Time Retrieving and Manipulating Functions

clock() function in C++
time() function in C++
difftime() function in C++
mktime() function in C++

Formatting Time and Date Functions

asctime() function in C++
ctime() function in C++
localtime() function in C++
strftime() function in C++
iscntrl() function in C++

Character Classification

isalnum() function in C++
isalpha() function in C++
isblank() function in C++
iscntrl() function in C++
isdigit() function in C++
islower() function in C++
isupper() function in C++

Character Conversion

tolower() function in C++
toupper() function in C++