subsurface/core/format.h
Berthold Stoeger 8b51ff7ded core: add locale aware formatting function to std::string
We had locale aware formatting functions that generated QStrings.
Create an alternative that creates std::string, since we want that
in the core.

This commit is unfortunate for two reasons:
- The function is called "casprintf()" for analogy with the QString
  version. However, the non locale aware function is called
  "format_string_std()" for analogy with "format_string()".
  Ultimately these names should be unified. Probably, once there
  are no membuffer users left.
- This does UTF-16->UTF-8->UTF-16 roundtrips. The core formatting
  functions should render UTF-8 and only convert to UTF-16, in
  the UI layer.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2024-04-23 07:47:11 +07:00

30 lines
808 B
C++

#ifndef FORMAT_H
#define FORMAT_H
#ifdef __GNUC__
#define __printf(x, y) __attribute__((__format__(__printf__, x, y)))
#else
#define __printf(x, y)
#endif
#ifdef __cplusplus
#include <QString>
__printf(1, 2) QString qasprintf_loc(const char *cformat, ...);
__printf(1, 0) QString vqasprintf_loc(const char *cformat, va_list ap);
__printf(1, 2) std::string casprintf_loc(const char *cformat, ...);
#endif
#ifdef __cplusplus
extern "C" {
#endif
__printf(3, 4) int snprintf_loc(char *dst, size_t size, const char *cformat, ...);
__printf(3, 0) int vsnprintf_loc(char *dst, size_t size, const char *cformat, va_list ap);
__printf(2, 3) int asprintf_loc(char **dst, const char *cformat, ...);
__printf(2, 0) int vasprintf_loc(char **dst, const char *cformat, va_list ap);
#ifdef __cplusplus
}
#endif
#endif