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 - init.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30835-e55edf4b45) Lines: 1145 1487 77.0 %
Date: 2026-04-26 09:26:37 Functions: 133 162 82.1 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
bl_rotleft 66414049
bl_rotright 60844820
blockbalance 2850112080
blockdelete 1575750182
blockheight 11864607910
blockinsert 1728761101
cgetg_copy_avma 1062467364
cgetlist_avma 620
chk_gc_upto 0
clone_lock 370902609
clone_unlock 311650393
clone_unlock_deep 59318328
clonesearch 741491069
copy_bin 472777710
copy_bin_canon 24
dbg_fill_stack 0
dbg_gc_upto 0
dbg_stack 0
debug_stack 0
dflt_err_recover 0
dflt_pari_quit 0
dflt_sigint_fun 0
dochk_gc_upto 0
err_init 14032
err_init_msg 13897
err_recover 13069
errname 27109
export_add 59
export_del 24
export_get 1498
exportall 6
f_getheap 6734
fix_height 3082254561
fix_size 746582
gc_all_unsafe 27381681
gc_dec 6014687706
gc_slice_unsafe 330800920
gc_stack_update 1237013982
gclone 237451974
gclone_refc 0
gcloneref 37888
gcopy 4888176311
gcopy_av0 4036797478
gcopy_av0_canon 84
gcopy_avma 3381972194
gcopy_lg 742
gdisplay 3703
gerepile 0
getabstime 1897
getdebugvar 370954
getheap 84
getstack 7
gettime 3724
getwalltime 0
gp_context_restore 13144
gp_context_save 146212
gsizebyte 175
gsizeclone 237452173
gsizeclone_i 3476577016
gsizeword 2214450
gunclone 388597496
gunclone_deep 3279426583
icopy_avma_canon 12
init_universal_constants 1897
is_in_block 234070548
list_internal_copy 7026
listassign 7026
listcopy 730
listinit 0
msgtimer 0
name_numerr 0
new_chunk_resize 18
newblock 238297891
numerr_name 27109
obj_check 6033686
obj_checkbuild 1507417
obj_checkbuild_padicprec 539
obj_checkbuild_prec 568477
obj_checkbuild_realprec 399100
obj_free 187740
obj_init 2533398
obj_insert 2661633
obj_insert_shallow 173572
obj_reinit 42
os_signal 20807
pari_add_defaults_module 1897
pari_add_module 1887
pari_close 1887
pari_close_blocks 366058
pari_close_export 1887
pari_close_opts 1887
pari_daemon 76
pari_err 56841
pari_err2GEN 56829
pari_err2str 21873
pari_err_display 13090
pari_err_last 87497
pari_exit 0
pari_handle_SIGINT 0
pari_init 0
pari_init_blocks 372845
pari_init_defaults 1897
pari_init_errcatch 373297
pari_init_export 1897
pari_init_functions 1897
pari_init_opts 1897
pari_init_timer 1897
pari_mainstack_alloc 373296
pari_mainstack_free 373286
pari_mainstack_malloc 373296
pari_mainstack_mextend 494977
pari_mainstack_mfree 373286
pari_mainstack_mreset 494977
pari_mainstack_resize 445
pari_mainstack_setsize 494977
pari_mainstack_use 372845
pari_sig_init 3784
pari_sighandler 3
pari_sigint 0
pari_stackcheck_init 374741
pari_thread_alloc 370954
pari_thread_close 371459
pari_thread_free 370954
pari_thread_get_global 370954
pari_thread_init 372844
pari_thread_set_global 370916
pari_thread_start 370946
pari_thread_valloc 0
pari_version 7
pari_warn 942
paristack_alloc 1897
paristack_newrsize 452
paristack_resize 0
paristack_setsize 0
parivstack_reset 121681
parivstack_resize 0
pop_entree_block 390102
rndus 221965
setalldebug 1925
setdebug 127
setdebugvar 370917
shiftaddress 3099319006
shiftaddress_canon 76
taille0 4037018781
taille0_canon 84
timer 0
timer2 0
timer_aux 221965
timer_delay 111893
timer_get 1903
timer_printf 0
timer_start 358529
timer_vprintf 0
timetoi 0
traverseheap 84
traverseheap_r 13552
type_dim 7308
unexportall 6
vec_gunclone_deep 134762685
walltimer_delay 108169
walltimer_get 0
walltimer_start 253712

Generated by: LCOV version 1.16