[tab:filebuf.open.modes]
31 Input/output library [input.output]
31.10 File-based streams [file.streams]
31.10.3 Class template basic_filebuf [filebuf]
31.10.3.4 Member functions [filebuf.members]
Table 146 — File open modes [tab:filebuf.open.modes]
ios_base flag combination | stdio equivalent | |||||
binary | in | out | trunc | app | noreplace | |
+ | "w" | |||||
+ | + | "wx" | ||||
+ | + | "w" | ||||
+ | + | + | "wx" | |||
+ | + | "a" | ||||
+ | "a" | |||||
+ | "r" | |||||
+ | + | "r+" | ||||
+ | + | + | "w+" | |||
+ | + | + | + | "w+x" | ||
+ | + | + | "a+" | |||
+ | + | "a+" | ||||
+ | + | "wb" | ||||
+ | + | + | "wbx" | |||
+ | + | + | "wb" | |||
+ | + | + | + | "wbx" | ||
+ | + | + | "ab" | |||
+ | + | "ab" | ||||
+ | + | "rb" | ||||
+ | + | + | "r+b" | |||
+ | + | + | + | "w+b" | ||
+ | + | + | + | + | "w+bx" | |
+ | + | + | + | "a+b" | ||
+ | + | + | "a+b" | |||