Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - language - es.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30734-f1f26dedcb) Lines: 2011 2801 71.8 %
Date: 2026-03-04 09:24:31 Functions: 248 310 80.0 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
GENtoGENstr 742
GENtoGENstr_nospace 0
GENtoTeXstr 0
GENtostr 4
GENtostr_fun 746
GENtostr_raw 3710
GENtostr_unquoted 25954
RgV_to_str 11196
Str 11070
Str_fun 11196
VpowE 233894
_cfwrite 8
_expand_env 5756
_flush_log 256618
_fputs 310299
_fwrite 104
_initout 0
_lfwrite 96
_path_expand 5756
_putc_log 10622403
_puts_log 310299
absrtostr 34671
absrtostr_width_frac 142743
blancs 0
brute 0
bruti 1168342
bruti_intern 984473
bruti_sign 1396598
check_compress 36
check_gp_file 320
check_magic 12
check_secure 40
cxq_init 11032
dbg 0
dbgGEN 0
dbg_addr 0
dbg_pari_heap 0
dbg_word 0
decode_color 12
delete_buffer 11251
dft_help 0
do_append 0
dopr_arg_vector 1463
dosign 287141
env_ok 0
err_flush 0
err_printf 347
error0 14
ex10 177379
externstr 4
file_getline 998661
file_input 998585
file_is_binary 16
filestate_close 382265
filestate_restore 13144
filestate_save 145800
filtre0 1007434
fix_buffer 7399
fmtnum 145987
fmtreal 143128
fmtstr 159120
forpath_init 20
forpath_next 20
fputGEN_pariout 0
gen_output 61451
gen_output_fun 61451
get_file 0
get_free_gp_file 56
get_fun 205676
get_lines 8
get_sigd 143044
get_texvar 105
get_var 97800
gp_dlopen 0
gp_embedded 0
gp_embedded_init 0
gp_fileclose 56
gp_fileextern 4
gp_fileflush 44
gp_fileflush0 52
gp_fileopen 52
gp_fileread 64
gp_filereadstr 56
gp_filewrite 48
gp_filewrite1 52
gp_filter 11039
gp_getenv 0
gp_read_file 19
gp_read_from_input 0
gp_read_str_history 0
gp_read_str_multiline 0
gp_read_stream 8887
gp_read_stream_buf 804589
gp_readvec_file 4
gp_readvec_stream 305
gpextern 4
gpinstall 0
gpsystem 28
gpwritebin 12
gsprintf 1603
gtolong_OK 77
gvsprintf 2000
history 61497
in_help 2393
init_filtre 806536
init_linewrap 63208
init_unique 0
initout 1883
input_loop 950085
install0 0
is_dir_stat 55
is_long_ok 24
is_magic_ok 79
is_sizeoflong_ok 12
isdenom 52969
isfactor 285814
isnull 3655953
isnull_for_pol 1748414
isone 1613813
itostr 6804
itostr_sign 757855
kill_file_stack 739242
killallfiles 49
log10_2 12
mat0n 392
matbrute 0
matbruti 61462
monome 218879
new_buffer 11251
new_gp_file 56
new_line 7919
newfile 40460
normalErrC 623671
normalErrF 40783
normalErrS 310200
normalOutC 9998732
normalOutF 215835
normalOutS 99
numdig 757855
ok_pipe 0
os_getenv 26651
out_print0 112610
out_print1 20307
out_printf 12501
out_putc 730587
out_puts 430893
out_term_color 68006
out_vprintf 14368
outmat 0
outpad 288961
output 0
paren 15540
pari_add_hist 107890
pari_ask_confirm 0
pari_close_files 1873
pari_close_homedir 1873
pari_dir_exists 0
pari_fclose 40383
pari_file_exists 0
pari_flush 201971
pari_fopen 0
pari_fopen_or_fail 0
pari_fopengz 40404
pari_fprintf 0
pari_fread_chars 112204
pari_fread_longs 72
pari_get_hist 61455
pari_get_histrtime 0
pari_get_histtime 0
pari_get_homedir 3750
pari_get_infile 40361
pari_histtime 21
pari_init_files 373553
pari_init_homedir 1883
pari_is_dir 55
pari_is_file 94
pari_is_rwx 0
pari_kill_file 40460
pari_last_was_newline 121761
pari_nb_hist 0
pari_open_file 0
pari_printf 753
pari_putc 105333
pari_puts 62931
pari_safefopen 0
pari_set_last_newline 150145
pari_sprint0 14
pari_sprintf 19132
pari_stdin_isatty 1883
pari_thread_close_files 372470
pari_tmp_dir 0
pari_unique_dir 0
pari_unique_filename 0
pari_unique_filename_suffix 0
pari_unlink 0
pari_vfprintf 0
pari_vprintf 753
pari_vsprintf 78095
path_expand 5756
path_is_absolute 20
popinfile 373940
print 111588
print0_file 94
print1 20279
print_0_or_pm1 1397114
print_coef 0
print_context 5410
print_entree 0
print_errcontext 13405
print_functions_hash 0
print_gcoef 237606
print_precontext 4613
print_prefixed_text 18804
printf0 742
printfl_0 111637
printfl_1 20279
printp 7
prints 0
printsep 973
printsep1 21
printtex 42
putc_lw 9920584
puts_lw 198874
quote_string 14938
rdGEN 16
rd_long 56
rdstr 8
readbin 12
readobj 28
readstr 4
real0tostr 1651
real0tostr_width_frac 661
resetout 1883
runaway_close 2190
set_last_newline 1158799
shift_add 143485
sm_dopr 79558
stack_GENtostr_fun 72734
stack_GENtostr_fun_unquoted 25954
stack_sprintf 42595
str_absint 575949
str_addr 0
str_alloc 617109
str_alloc0 2115
str_arg_vprintf 227653
str_init 301458
str_long 182621
str_print0 144221
str_printf 148096
str_putc 15413597
str_puts 2496278
str_putscut 159120
str_ulong 182621
strexpand 0
strftime_expand 4
string_gets 0
strip_last_nl 0
strlen_real 173593
strprintf 721
strtex 126
switchin 27
switchin_last 7
switchout 0
switchout_get_FILE 94
term_color 693
term_get_color 82786
term_height 7
term_height_intern 7
term_width 22870
term_width_intern 22870
texVpowE 210
texe 0
texexpo 210
texi 319
texi_sign 516
texnome 203
texparen 0
times_monome 177926
times_texnome 140
tmp_restore 13596
try_dlopen 0
try_name 20
try_open 20
try_pipe 8
uordinal 0
utodec 1144220
v_get_arg 1876
vsigne 0
warning0 7
wr 94
wrGEN 16
wr_check 122
wr_dec 160345
wr_lead_monome 98647
wr_lead_texnome 119
wr_long 80
wr_monome 174720
wr_texnome 105
wr_vecsmall 8082
wrexpo 233894
write0 82
write1 8
writeGEN 8
write_magic 12
writebin 12
writenamedGEN 8
writetex 4
wrstr 8
zeros 15411
zerotostr 126

Generated by: LCOV version 1.16