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:

• with GMP kernel
• with GMP kernel using --mt=pthread
• with native kernel, including micro-assembler code
• with native kernel, without micro-assembler
• with native kernel, without micro-assembler, disabling GCC extensions (DISABLE_INLINE)
• with GMP kernel, emulating an x86_32 architecture at Configure time via setarch

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 - basemath - gen1.c (source / functions) Hit Total Coverage Test: PARI/GP v2.18.1 lcov report (development 30674-be81ecfdd4) Lines: 1881 2002 94.0 % Date: 2026-02-09 09:23:39 Functions: 104 104 100.0 % Legend: Lines: hit not hit

Function Name	Hit count
addTp	7
mulqf	28
kro_quad	35
Zp_nosquare_m1	42
divfq	42
divqf	63
sqrq	70
addqf	77
conjvec	84
is_ext_qfr	98
warn_coercion	112
divRq	301
mulqq	1127
addRq	1288
mulRq	2324
divTp	3674
addsub_polmod	7203
ser_normalize	7658
quad_polmod_conj	18403
quad_polmod_norm	18403
div_scal_ser	19096
div_rfrac_scal	32139
div_polmod_same	37016
div_scal_rfrac	37767
sqr_ser_part	113207
mul_gen_rfrac	161432
inv_polmod	189697
fix_rfrac	206780
Q_to_Fp	226838
div_rfrac_pol	262365
mul_ser_scal	321174
div_intmod_same	341509
gconj	390135
add_ser_scal	414436
sqr_polmod	419385
div_ser	774266
sub_intmod_same	1021769
div_rfrac	1187237
divpT	1204910
div_ser_scal	1343391
gdivgunextu	1583803
Qdivis	1592288
divRc	2286408
mul_polmod	2674945
mul_intmod_same	2788909
mulcxmI	2985897
add_rfrac	3017228
gsubsg	3235140
mul_polmod_scal	3238992
add_intmod_same	3338891
ser_add	3592942
addQp	4762976
mulTp	4985917
mulcxpowIs	5563071
pol2ser	5638655
quad_polmod_mul	5860209
div_T_scal	7128718
_serprec	7185086
mul_self_scal	7645958
mul_rfrac	7910299
mul_polmod_same	8529774
add_rfrac_scal	8812213
div_scal_pol	9258206
div_scal_T	9266449
rfrac_denom_mul_scal	9959022
mul_rfrac_scal	10454093
mulcIR	11646834
gdivgs	13001843
divpp	13212814
addsub_polmod_scal	13456529
addsub_frac_i	14120656
setfrac	14999463
mulcxI	15629259
mulpp	17505522
addsub_pp	19974791
divcR	23353235
mkpadic_mod	24594886
conj_i	31492428
ginv	36545700
mulrfrac	37741215
addsub_frac	40598719
add_scal	42826811
gred_rfrac2	44823163
Leading_is_neg	57790160
gred_rfrac_simple	57794249
gdivgu	60481378
utoi_sign	64650224
Qdivii	141909138
gmul2n	143710503
Qdiviu	148787897
mul_scal	154346028
transtype	154397901
divrunextu	213819991
gmulsg	239693647
gaddsg	270740483
mulcc	279036320
gmulug	283683119
addRc	307902861
mulRc	354541989
gdiv	439096338
gsqr	1184033437
gsub	2887715683
gadd	6149360256
gmul	8695138702

Generated by: LCOV version 1.16